CN1824126A

CN1824126A - Quality control method of oral preparation for yin enriching kidney supplementing

Info

Publication number: CN1824126A
Application number: CN 200510200882
Authority: CN
Inventors: 叶湘武; 张梅
Original assignee: Guizhou Yibai Pharmaceutical Co Ltd
Current assignee: Guizhou Yibai Pharmaceutical Co Ltd
Priority date: 2005-12-29
Filing date: 2005-12-29
Publication date: 2006-08-30
Anticipated expiration: 2025-12-29
Also published as: CN100408069C

Abstract

A quality control method for the orally taken Chinese medicine used to nourish Yin and kidney includes such steps as checking its characteristics, discrimination by microscopic differentiation to tuckahoe and the thin-layer differentation of paeonol relative to tree peony bark, and measuring the contents of paeonol and ursolic acid.

Description

The method of quality control of the oral formulations of enriching yin and nourishing kidney

Technical field: the present invention relates to a kind of method of quality control of oral formulations of enriching yin and nourishing kidney, belong to the technical field of medicine being carried out quality control.

Technical background: Liuwei Dihuang preparation is the representative prescription of traditional Chinese medical science nourishing kidney yin, by the JINGUI SHENQI WAN derivation, is total to the Six-element medicine by Radix Rehmanniae Preparata, Cortex Moutan, Rhizoma Dioscoreae, Fructus Corni, Rhizoma Alismatis, Poria and forms; Effect with enriching yin and nourishing kidney is used for the treatment of diseases such as dizziness due to deficiency of kidney yin, the hyperactivity of deficient fire, tinnitus, soreness of the waist and knees, night sweat, seminal emission, feverish sensation in the palms and soles.Wherein " LIUWEIDIHUANG JIAONANG ", " six drugs containing rehmanniae sheet ", " six drugs containing rehmanniae granule " and " LIUWEI DIHUANG WAN " are at Chinese Pharmacopoeia, Chinese traditional patent formulation preparation promulgated by the ministries or commissions of the Central Government, country's terrestrial reference rises on the GB Chinese patent medicine all on the books, this medicine is used for many years clinically, at the treatment deficiency of kidney yin, dizziness due to the hyperactivity of deficient fire, tinnitus, soreness of the waist and knees, night sweat, seminal emission, disease aspects such as feverish sensation in the palms and soles obtain satisfied therapeutic effect, but discover through us, " LIUWEIDIHUANG JIAONANG ", " six drugs containing rehmanniae sheet ", " six drugs containing rehmanniae granule " and " LIUWEI DIHUANG WAN " all exist quality control standard simple, the uppity shortcoming of product quality.Cortex Moutan and Fructus Corni are the medicine that plays a major role in the Liuwei Dihuang preparation, and in the existing preparation quality standard or its effective ingredient is not carried out assay, used content assaying method accuracy is not high enough, so existing method of quality control can not effectively be controlled the quality of the oral formulations of this enriching yin and nourishing kidney, thereby will influence the clinical efficacy of said preparation.

Summary of the invention:

The objective of the invention is to: the method for quality control that a kind of oral formulations of enriching yin and nourishing kidney is provided, it is simple to the present invention is directed to existing quality control standard, the uppity shortcoming of product quality, method of quality control to this preparation is studied, content assaying method to main medicine Cortex Moutan and Fructus Corni contrasts and screens, improve its quality control standard, thereby guaranteed the clinical efficacy of this preparation.

The oral formulations of enriching yin and nourishing kidney of the present invention, calculate according to composition by weight: it mainly is prepared from by Radix Rehmanniae Preparata 100-200, Cortex Moutan 20-100, Rhizoma Dioscoreae 40-150, Fructus Corni 40-150, Rhizoma Alismatis 20-100, Poria 20-100.

Preparation of the present invention rises the method preparation of going up record on the GB Chinese patent medicine about " LIUWEIDIHUANG JIAONANG ", " six drugs containing rehmanniae sheet ", " six drugs containing rehmanniae granule " and " LIUWEI DIHUANG WAN " according to Chinese Pharmacopoeia, Chinese traditional patent formulation preparation promulgated by the ministries or commissions of the Central Government, national terrestrial reference, or all according to following method preparation:

Method one: get Poria and partly be ground into fine powder, tail over part and decoct with water 1-5 time with the residue Poria, merging filtrate is concentrated into the thick paste shape; Fructus Corni adds alcohol reflux 1-5 time, filters, and medicinal residues are standby, and filtrate recycling ethanol is concentrated into the thick paste shape; The Cortex Moutan vapor distillation, the distillate crystallization filters, and crystallization washes with water, and cold drying is ground into fine powder; Three flavors such as aqueous solution after the distillation and Cortex Moutan medicinal residues, Fructus Corni medicinal residues and all the other Radix Rehmanniae Preparata decoct with water 1-5 time, merging filtrate, pass through macroporous adsorptive resins, use the ethanol-water solution eluting, collect eluent, reclaim ethanol, be concentrated into the thick paste shape, add above-mentioned Poria thick paste, Fructus Corni thick paste and Poria fine powder, Cortex Moutan extract and adjuvant, mixing is made capsule, tablet, granule or pill according to diverse ways again.

Method two: Poria partly is ground into fine powder, and Fructus Corni adds alcohol reflux 1-5 time, filters, and medicinal residues are standby, and filtrate recycling ethanol is concentrated into the thick paste shape; The Cortex Moutan vapor distillation, the distillate crystallization, standby; Three flavors such as aqueous solution after the distillation and Cortex Moutan medicinal residues, Fructus Corni medicinal residues, residue Poria and all the other Radix Rehmanniae Preparata decoct with water 1-5 time, filter, and merging filtrate is concentrated into the thick paste shape; Add above-mentioned Poria fine powder, Fructus Corni thick paste, Cortex Moutan extract and adjuvant, mixing is made capsule, granule or pill according to diverse ways again.

Described method of quality control mainly comprise in character, inspection, discriminating, the assay project partly or entirely; Wherein differentiate the microscopical identification comprise the Poria medical material, differentiate that with the paeonol reference substance thin layer of Cortex Moutan medical material in the preparation differentiates; Assay comprises to be measured paeonol, content of ursolic acid in the preparation.

The discrimination method of Cortex Moutan is to be contrast with the paeonol reference substance in this preparation, is the thin layer discrimination method of developing solvent with cyclohexane extraction: ethyl acetate=1-9: 9-1.

Discrimination method comprises the part or all of of following project:

(1) get the fine powder of capsule, tablet, granule or pill respectively, microscopically is observed: the dendritic agglomerate of irregular branch is colourless, meets chloral hydrate liquid and dissolves; Hyphae colorless or light brown, diameter 4～6 μ m;

(2) get capsule, tablet, granule or pill respectively, add diethyl ether, reflux filters, and filtrate is reclaimed ether, and residue adds acetone solution, as need testing solution; Other gets the paeonol reference substance, adds acetone solution, in contrast product solution; Test according to the Chinese Pharmacopoeia thin layer chromatography, drawing above-mentioned two kinds of solution, put respectively on same silica gel g thin-layer plate, is developing solvent with cyclohexane extraction: ethyl acetate=1-9: 9-1, launch, take out, dry, spray is with 5% acid ferric chloride alcoholic solution, it is clear that hot blast blows to the speckle colour developing, in the test sample chromatograph, with the corresponding position of reference substance chromatograph on, show the speckle of same color.

Concrete discrimination method comprises the part or all of of following project:

(1) get the fine powder of capsule, tablet, granule or pill respectively, put microscopically and observe: the dendritic agglomerate of irregular branch is colourless, meets chloral hydrate liquid and dissolves; Hyphae colorless or light brown, diameter 4～6 μ m;

(2) get capsule, tablet or pill 0.5-5g respectively; Or get granule 3-10g, and the 20-100ml that adds diethyl ether, reflux 0.5-3 hour, filter, filtrate is reclaimed ether, and residue adds acetone 0.2-1ml makes dissolving, as need testing solution; Other gets the paeonol reference substance, adds acetone and makes the solution that every 1ml contains 0.5-2ml, in contrast product solution; According to the test of Chinese Pharmacopoeia thin layer chromatography, draw each 2-15 μ l of above-mentioned two kinds of solution, put respectively on same silica gel g thin-layer plate, with cyclohexane extraction: ethyl acetate=1-9: 9-1 is developing solvent, launches, and takes out, dry, spray is with 5% acid ferric chloride alcoholic solution (5% ferric chloride alcoholic solution 10ml adds hydrochloric acid 2ml, mixing), it is clear that hot blast blows to the speckle colour developing, in the test sample chromatograph, with the corresponding position of reference substance chromatograph on, show the speckle of same color.

The content assaying method of paeonol is to be chromatographic column with C18 or C4 or C8 post in this preparation, is the high performance liquid chromatography of mobile phase with methanol or acetonitrile: water=1-9: 9-1.

The content of ursolic acid assay method is with cyclohexane extraction in this preparation: chloroform: ethyl acetate: formic acid=10-50: 10-25: 1-10: 0.5-5 is the thin layer chromatography scanning of developing solvent.

Content assaying method is:

(1) Cortex Moutan adopts high performance liquid chromatography, and chromatographic column is C18 or C4 or C8 post, is mobile phase with methanol or acetonitrile: water=1-9: 9-1; Detect wavelength: 200-500nm, number of theoretical plate calculates by the paeonol peak should be not less than 1000; Precision takes by weighing the paeonol reference substance, uses dissolve with methanol, promptly gets reference substance solution; Get capsule, tablet, granule or pill under the content uniformity item respectively, add the methanol supersound extraction, put coldly, supply weight and the standardize solution that subtracts mistake, shake up,, promptly get need testing solution with 0.65 μ m and less than the microporous filter membrane filtration of 0.65 μ m with methanol; Accurate respectively reference substance solution and the need testing solution drawn injects hplc determination content; In this oral formulations, contain Cortex Moutan in the capsule, must not be less than 3mg/g in paeonol; Contain Cortex Moutan in the tablet in paeonol, must not be less than 1mg/g; Contain Cortex Moutan in the granule in paeonol, must not be less than 0.4mg/g; Contain Cortex Moutan in the pill in paeonol, must not be less than 0.5mg/g;

(2) Fructus Corni is got capsule, tablet, granule or the pill under the content uniformity item respectively, porphyrize, mixing is got fine powder, the accurate title, decide, put in the apparatus,Soxhlet's, add diethyl ether, heating and refluxing extraction, the extracting solution evaporate to dryness, residue adds the mixed liquor of dehydrated alcohol: chloroform=1-9: 9-1, and slight fever makes dissolving and quantitative, as need testing solution; Other gets the ursolic acid reference substance, adds anhydrous alcohol solution, in contrast product solution; According to the test of Chinese Pharmacopoeia thin layer chromatography, draw above-mentioned need testing solution and reference substance solution, put respectively on same silica gel g thin-layer plate, with cyclohexane extraction: chloroform: ethyl acetate: formic acid=10-50: 10-25: 1-10: 0.5-5 is developing solvent, launches, and takes out, dry, spray is with 10% ethanol solution of sulfuric acid, and it is clear to dry by the fire to the speckle colour developing at 110 ℃, takes out, cover onesize glass plate on the lamellae, use immobilization with adhesive tape on every side, scan wavelength according to the Chinese Pharmacopoeia thin layer chromatography scanning: λ _S=200-600nm, λ _R=600-900nm measures test sample trap integrated value and reference substance trap integrated value, calculates, promptly; In this oral formulations, contain Fructus Corni in the capsule, must not be less than 0.3mg/g in ursolic acid; Contain Fructus Corni in the tablet in ursolic acid, must not be less than 0.1mg/g; Contain Fructus Corni in the granule in ursolic acid, must not be less than 0.05mg/g; Contain Fructus Corni in the pill in ursolic acid, must not be less than 0.02mg/g.

Concrete content assaying method is:

(1) Cortex Moutan adopts high performance liquid chromatography, and chromatographic column is C18 or C4 or C8 post, is mobile phase with methanol or acetonitrile: water=1-9: 9-1; Detect wavelength: 200-500nm, number of theoretical plate calculates by the paeonol peak should be not less than 1000; Precision takes by weighing the paeonol reference substance, makes the reference substance solution that contains paeonol 10-20 μ g among every 1ml with dissolve with methanol; Get capsule, tablet 0.1-0.5g under the content uniformity item respectively, or get pill, granule 1-5g, the accurate title, decide, the accurate methanol 25ml that adds claims to decide weight, supersound process 10-60 minute, put coldly, supply the weight that subtracts mistake, shake up with methanol, filter, get subsequent filtrate 1ml, put in the 5ml measuring bottle, add methanol to scale, shake up, the microporous filter membrane that reaches less than 0.65 μ m with 0.65 μ m filters, and promptly gets need testing solution; Accurate respectively reference substance solution and each 5-20 μ l of need testing solution of drawing injects hplc determination content; In this oral formulations, contain Cortex Moutan in the capsule, must not be less than 3mg/g in paeonol; Contain Cortex Moutan in the tablet in paeonol, must not be less than 1mg/g; Contain Cortex Moutan in the granule in paeonol, must not be less than 0.4mg/g; Contain Cortex Moutan in the pill in paeonol, must not be less than 0.5mg/g;

(2) Fructus Corni is got capsule, tablet, pill or the granule under the content uniformity item respectively, porphyrize, mixing is got fine powder 0.5g-10g, the accurate title, decide, put in the apparatus,Soxhlet's, add diethyl ether, reflux 1-8 hour, the extracting solution evaporate to dryness, residue adds the mixed liquor of dehydrated alcohol: chloroform=1-9: 9-1, and slight fever makes dissolving also quantitatively to 5ml, as need testing solution; Other gets the ursolic acid reference substance, adds dehydrated alcohol and makes the solution that every 1ml contains 0.1-1mg, in contrast product solution; Test according to the Chinese Pharmacopoeia thin layer chromatography, draw each 3-15 μ l of above-mentioned need testing solution and reference substance solution, put respectively on same silica gel g thin-layer plate, with cyclohexane extraction: chloroform: ethyl acetate: formic acid=10-50: 10-25: 1-10: 0.5-5 is developing solvent, launch, take out, dry, spray is with 10% ethanol solution of sulfuric acid, and it is clear to dry by the fire to the speckle colour developing at 110 ℃, takes out, cover onesize glass plate on the lamellae, use immobilization with adhesive tape on every side, scan wavelength according to the Chinese Pharmacopoeia thin layer chromatography scanning: λ _S=200-600nm, λ _R=600-900nm measures test sample trap integrated value and reference substance trap integrated value, calculates, promptly; In this oral formulations, contain Fructus Corni in the capsule, must not be less than 0.3mg/g in ursolic acid; Contain Fructus Corni in the tablet in ursolic acid, must not be less than 0.1mg/g; Contain Fructus Corni in the granule in ursolic acid, must not be less than 0.05mg/g; Contain Fructus Corni in the pill in ursolic acid, must not be less than 0.02mg/g.

Described method of quality control comprises:

Character: for capsule: the product content thing is that light brown is to brown powder or granule; Bitter in the mouth, little acid;

For tablet: medicine shows light brown to brown powder or granule; Bitter in the mouth, little acid;

For granule: product be light brown to brown granule, it is sweet and sour to distinguish the flavor of;

For pill: product be light brown to brown pill, little sweet, sour, hardship slightly of distinguishing the flavor of;

Differentiate: (1) gets the fine powder of capsule, tablet, granule or pill respectively, and microscopically is observed: the dendritic agglomerate of irregular branch is colourless, meets chloral hydrate liquid and dissolves; Hyphae colorless or light brown, diameter 4～6 μ m;

(2) get capsule, tablet, granule or pill respectively, add diethyl ether, reflux filters, and filtrate is reclaimed ether, and residue adds acetone solution, as need testing solution; Other gets the paeonol reference substance, adds acetone solution, in contrast product solution; Test according to the Chinese Pharmacopoeia thin layer chromatography, drawing above-mentioned two kinds of solution, put respectively on same silica gel g thin-layer plate, is developing solvent with cyclohexane extraction: ethyl acetate=1-9: 9-1, launch, take out, dry, spray is with 5% acid ferric chloride alcoholic solution, it is clear that hot blast blows to the speckle colour developing, in the test sample chromatograph, with the corresponding position of reference substance chromatograph on, show the speckle of same color;

Check: should meet every regulation relevant under Chinese Pharmacopoeia capsule, tablet, granule or the pill item;

Assay: (1) Cortex Moutan adopts high performance liquid chromatography, and chromatographic column is C18 or C4 or C8 post, is mobile phase with methanol or acetonitrile: water=1-9: 9-1; Detect wavelength: 200-500nm, number of theoretical plate calculates by the paeonol peak should be not less than 1000; Precision takes by weighing the paeonol reference substance, uses dissolve with methanol, promptly gets reference substance solution; Get capsule, tablet, granule or pill under the content uniformity item respectively, add the methanol supersound extraction, put coldly, supply weight and the standardize solution that subtracts mistake, shake up,, promptly get need testing solution with 0.65 μ m and less than the microporous filter membrane filtration of 0.65 μ m with methanol; Accurate respectively reference substance solution and the need testing solution drawn injects hplc determination content; In this oral formulations, contain Cortex Moutan in the capsule, must not be less than 3mg/g in paeonol; Contain Cortex Moutan in the tablet in paeonol, must not be less than 1mg/g; Contain Cortex Moutan in the granule in paeonol, must not be less than 0.4mg/g; Contain Cortex Moutan in the pill in paeonol, must not be less than 0.5mg/g;

We find after deliberation, adopt the quality of following method of quality control with the oral formulations of this enriching yin and nourishing kidney of easier control, are more conducive to guarantee the clinical efficacy of preparation.So described method of quality control also can comprise:

Differentiate: (1) gets the fine powder of capsule, tablet, granule or pill respectively, and put microscopically and observe: the dendritic agglomerate of irregular branch is colourless, meets chloral hydrate liquid and dissolves; Hyphae colorless or light brown, diameter 4～6 μ m;

(2) get capsule, tablet or pill 0.5-5g respectively; Or get granule 3-10g, and the 20-100ml that adds diethyl ether, reflux 0.5-3 hour, filter, filtrate is reclaimed ether, and residue adds acetone 0.2-1ml makes dissolving, as need testing solution; Other gets the paeonol reference substance, adds acetone and makes the solution that every 1ml contains 0.5-2ml, in contrast product solution; According to the test of Chinese Pharmacopoeia thin layer chromatography, draw each 2-15 μ l of above-mentioned two kinds of solution, put respectively on same silica gel g thin-layer plate, with cyclohexane extraction: ethyl acetate=1-9: 9-1 is developing solvent, launches, and takes out, dry, spray is with 5% acid ferric chloride alcoholic solution (5% ferric chloride alcoholic solution 10ml adds hydrochloric acid 2ml, mixing), it is clear that hot blast blows to the speckle colour developing, in the test sample chromatograph, with the corresponding position of reference substance chromatograph on, show the speckle of same color;

Check: should meet every regulation relevant under Chinese Pharmacopoeia capsule, tablet or the granule item;

Assay: (1) Cortex Moutan adopts high performance liquid chromatography, and chromatographic column is C18 or C4 or C8 post, is mobile phase with methanol or acetonitrile: water=1-9: 9-1; Detect wavelength: 200-500nm, number of theoretical plate calculates by the paeonol peak should be not less than 1000; Precision takes by weighing the paeonol reference substance, makes the reference substance solution that contains paeonol 10-20 μ g among every 1ml with dissolve with methanol; Get capsule, tablet 0.1-0.5g under the content uniformity item respectively, or get pill, granule 1-5g, the accurate title, decide, the accurate methanol 25ml that adds claims to decide weight, supersound process 10-60 minute, put coldly, supply the weight that subtracts mistake, shake up with methanol, filter, get subsequent filtrate 1ml, put in the 5ml measuring bottle, add methanol to scale, shake up, the microporous filter membrane that reaches less than 0.65 μ m with 0.65 μ m filters, and promptly gets need testing solution; Accurate respectively reference substance solution and each 5-20 μ l of need testing solution of drawing injects hplc determination content; In this oral formulations, contain Cortex Moutan in the capsule, must not be less than 3mg/g in paeonol; Contain Cortex Moutan in the tablet in paeonol, must not be less than 1mg/g; Contain Cortex Moutan in the granule in paeonol, must not be less than 0.4mg/g; Contain Cortex Moutan in the pill in paeonol, must not be less than 0.5mg/g;

The main medicine of Cortex Moutan for playing a role in this preparation, wherein paeonol is again the main effective ingredient in the Cortex Moutan.So tackling the content of paeonol in the Cortex Moutan in this preparation measures.Bibliographical information is more in the content assaying method of paeonol ultraviolet spectrophotometry, a high performance liquid chromatography etc.Discover through us, when this preparation adopts ultraviolet spectrophotometry that paeonol in the Cortex Moutan is carried out assay, since in the processing procedure of sample because of all multifactor impacts such as manual operations, its specificity is not strong, relative standard deviation more efficient liquid chromatography is big, the measurement result instability is so the present invention adopts the content of high effective liquid chromatography for measuring paeonol.Fructus Corni also is the main medicine that plays a role in this preparation, and wherein ursolic acid is the main effective ingredient of Fructus Corni.In to content of ursolic acid assay method in this preparation, we once adopted high performance liquid chromatography that ursolic acid is carried out assay, because ursolic acid and isomers oleanolic acid chemical property are closely similar, be difficult to separate, so fail to set up the content of ursolic acid assay method, and ursolic acid in the Fructus Corni carried out assay with TLC scanning method with high performance liquid chromatography.Through a large amount of experiments, it is C18 or C4 or C8 post that the present invention selects chromatographic column, is mobile phase with methanol or acetonitrile: water=1-9: 9-1; Detect wavelength and be the content of paeonol in the high effective liquid chromatography for measuring preparation of 200-500nm.The result shows that extracts active ingredients is complete in the medicine, and under this condition, component to be measured is separated fully (separating degree＞1.5) with other components, and repeatability, the response rate etc. all can meet the requirements, and illustrates that the inventive method is feasible.In addition with cyclohexane extraction: chloroform: ethyl acetate: formic acid=10-50: 10-25: 1-10: 0.5-5 is developing solvent, wavelength X _S=200-600nm, λ _RThe thin layer chromatography scanning of=600-900nm is measured content of ursolic acid in this preparation.The result shows that separating degree is good, and the speckle colour developing is clear, and measurement result is accurate.Owing to have medicated powder to be used as medicine in the preparation of the present invention, so the present invention also carries out microscopical identification to this preparation.In addition, the present invention also carries out the thin layer Study on Identification to the Cortex Moutan medical material, and to select with the paeonol reference substance be contrast, is that Cortex Moutan medical material in the preparation is differentiated in developing solvent with cyclohexane extraction: ethyl acetate=1-9: 9-1.Its separating degree is good as a result, and the speckle colour developing is clear, and negative control is noiseless, the method favorable reproducibility.So adopt method of quality control of the present invention can effectively control the quality of this enriching yin and nourishing kidney oral formulations, thereby guarantee the clinical efficacy of said preparation.

Method of quality control of the present invention is the preferred plan that obtains through a large amount of experiments, and following experimentation is a preferred process of the present invention.

One, Cortex Moutan content assaying method research

1, need testing solution preparation method research:

The thing of getting it filled accurately claims surely, puts in the tool plug conical flask, and the accurate methanol that adds claims decide weight, adopts supersound process, dipping, reflux, extract, respectively, puts coldly, and weight decided in title again, supplies the weight that subtracts mistake with methanol, surveys its content then respectively, and the result is as follows:

Extracting method	Ultrasonic	Dipping	Reflux, extract,
Extracting method	Ultrasonic	Dipping	Reflux, extract,	Content	2.135％	1.056％	1.731％

According to result of the test as can be known, adopt the method for supersound extraction, paeonol extracts more complete.

2, the selection of mobile phase:

Mobile phase 1: the mixed solution with methanol, water, glacial acetic acid different proportion is a mobile phase.

Mobile phase 2: the mixed solution with methanol, water different proportion is a mobile phase.

Mobile phase 3: the mixed solution with acetonitrile, water different proportion is a mobile phase.

Mobile phase 4: the mixed solution with methanol, glacial acetic acid different proportion is a mobile phase.

The result: with methanol or acetonitrile: water=1-9: 9-1 is mobile phase; The negative sample chromatogram is at non-false positive peak, ephedrine hydrochloride position, and paeonol separates fully (separating degree＞1.5) with close impurity peaks, and promptly paeonol separates with other components fully under this condition.Optimal flow is mutually: methanol: water=7: 3.

3, repeatability test

Get this oral formulations, prepare 5 parts of test liquids respectively by test liquid preparation method under the Cortex Moutan assay item among the present invention, sample introduction is measured peak area, and result of calculation is listed following table in.The result shows that this test repeatability is good.

The sample umber	1	2	3	4	5	Meansigma methods	RSD(％)
The sample umber	1	2	3	4	5	Meansigma methods	RSD(％)	Content (%)	2.027	1.993	2.015	2.074	1.968	2.015	1.97

4, recovery test

Adopt the application of sample absorption method, precision takes by weighing the preparation of measuring content, puts in the tool plug conical flask, accurate paeonol reference substance solution (0.0432mg/ml) 25ml that adds claims to decide weight, close plug, supersound process 30 minutes is put coldly, claims to decide weight again, supply the weight that subtracts mistake with methanol, shake up, filter, precision is measured subsequent filtrate 1ml, puts in the 5ml measuring bottle, adds methanol to scale, shake up, filter, make test liquid with filter membrane (0.45 μ m).Prepare 5 parts respectively, measurement result sees the following form.

The test umber	Sample size (mg)	Contain paeonol (mg)	Add paeonol (mg)	The amount of recording (mg)	The response rate (%)	Average recovery rate (%)	RSD(％)
The test umber	Sample size (mg)	Contain paeonol (mg)	Add paeonol (mg)	The amount of recording (mg)	The response rate (%)	Average recovery rate (%)	RSD(％)	1	50.1	1.0095		2.0994	100.9
2	52.0	1.0478		2.1238	99.63			1	50.1	1.0095		2.0994	100.9
2	52.0	1.0478		2.1238	99.63			3	47.9	0.9652	1.08	2.0139	97.10	99.26	2.12
4	44.7	0.9007		1.9982	101.6			3	47.9	0.9652	1.08	2.0139	97.10	99.26	2.12
4	44.7	0.9007		1.9982	101.6			5	44.2	0.8906		1.9390	97.07

5, paeonol is the main effective ingredient in the Cortex Moutan, and bibliographical information is more in the content assaying method of paeonol ultraviolet spectrophotometry, high performance liquid chromatography etc.Discover through us, this preparation adopts ultraviolet spectrophotometry that paeonol in the Cortex Moutan is carried out assay, its specificity is not strong, error is big, the measurement result instability, relative standard deviation more efficient liquid chromatography is big, so the present invention adopts the content of high effective liquid chromatography for measuring paeonol, below is that preparation of the present invention adopts high performance liquid chromatography and determined by ultraviolet spectrophotometry result relatively:

Liuwei Dihuang preparation high performance liquid chromatography and determined by ultraviolet spectrophotometry result (n=5)

Sample	High performance liquid chromatography		Ultraviolet spectrophotometry
	High performance liquid chromatography		Ultraviolet spectrophotometry		Content (%)	RSD(％)	Content (%)	RSD(％)
	1 2 3	21.52 21.51 21.52	1.27 1.25 0.91	21.48 21.46 21.50	Content (%)	RSD(％)	Content (%)	RSD(％)	3.15 2.94 2.67

Two, Fructus Corni content assaying method research

1, need testing solution preparation method research:

Method one: the thing of getting it filled, porphyrize, mixing, get fine powder, the accurate title, decide, and puts in the apparatus,Soxhlet's, add diethyl ether reflux 4 hours, extracting solution evaporate to dryness, residue adds an amount of dehydrated alcohol-chloroform (3: 2) mixed liquor, slight fever makes dissolving, quantitatively is transferred in the 5ml measuring bottle, and is diluted to scale, shake up, promptly.

Method two: the thing of getting it filled, porphyrize is got fine powder, the accurate title, decide, and puts in the apparatus,Soxhlet's, and it is an amount of to add diethyl ether, heating and refluxing extraction 4 hours, extracting solution reclaim ether to doing, and residue soaks 2 times with petroleum ether (30～60 ℃), each 15ml (soaking about 2 minutes), it is an amount of that the petroleum ether that inclines, residue add dehydrated alcohol-chloroform (3: 2) mixed liquor, slight fever makes dissolving, is transferred in the 5ml measuring bottle, and is diluted to scale, shake up, promptly.

Sample	Method 1 (mg/g)	Method 2 (mg/g)
Sample	Method 1 (mg/g)	Method 2 (mg/g)	1	2.69	2.56
2	2.75	2.60	1	2.69	2.56
2	2.75	2.60	3	2.81	2.50

According to result of the test as can be known, employing method 1 preparation need testing solution, ursolic acid extracts comparatively complete.

2, the selection of developing solvent:

Developing solvent 1: with cyclohexane extraction: chloroform: the mixed solution of ethyl acetate and formic acid different proportion is developing solvent.

Developing solvent 2: with cyclohexane extraction: chloroform: the mixed solution of ethyl acetate different proportion is developing solvent.

Result: with cyclohexane extraction: chloroform: ethyl acetate: formic acid=10-50: 10-25: 1-10: 0.5-5 is developing solvent, and separating degree is good, and the speckle colour developing is clear, and negative control is noiseless, the method favorable reproducibility.

Three, Cortex Moutan thin layer Study on Identification

Prepare reference substance solution with the paeonol reference substance.

Need testing solution preparation method one: the thing of getting it filled, porphyrize.Add kieselguhr and mix thoroughly, the heating and refluxing extraction that adds diethyl ether filters, and filtrate is flung to ether, and residue adds acetone solution, as need testing solution; Lack the Cortex Moutan negative controls with the method preparation.

Need testing solution preparation method two: the thing of getting it filled, the heating and refluxing extraction that adds diethyl ether filters, and filtrate is reclaimed ether, and residue adds acetone makes dissolving, as need testing solution; Lack the Cortex Moutan negative controls with the method preparation.

Developing solvent is selected: respectively with the mixed solution of cyclohexane extraction, ethyl acetate different proportion; Mixed solution with petroleum ether, ethyl acetate different proportion is developing solvent.

The result: adopting method two to prepare need testing solution, is developing solvent with cyclohexane extraction: ethyl acetate=1-9: 9-1, and its separating degree is good, and the speckle colour developing is clear, and negative control is noiseless, the method favorable reproducibility.Best developing solvent is: cyclohexane extraction: ethyl acetate=3: 1.

Compared with prior art, method of quality control of the present invention has carried out contrast, screening to content of ursolic acid assay method in paeonol in the Cortex Moutan and the Fructus Corni, and the thin layer of Cortex Moutan medical material differentiated study, the method separating degree that is adopted is good, favorable reproducibility, response rate height, measurement result is accurate, improve existing quality control standard, can effectively control the quality of the oral formulations of enriching yin and nourishing kidney, thereby guaranteed the clinical efficacy of said preparation.

The specific embodiment:

The embodiment of the invention 1:

(2) get capsule, tablet or pill 2.5g respectively; Or get granule 6g, and the 60ml that adds diethyl ether, reflux 2 hours filters, and filtrate is reclaimed ether, and residue adds acetone 0.5ml makes dissolving, as need testing solution; Other gets the paeonol reference substance, adds acetone and makes the solution that every 1ml contains 1.5ml, in contrast product solution; According to the test of Chinese Pharmacopoeia thin layer chromatography, draw each 5 μ l of above-mentioned two kinds of solution, put respectively on same silica gel g thin-layer plate, with cyclohexane extraction: ethyl acetate=3: 1 is developing solvent, launches, and takes out, dry, spray is with 5% acid ferric chloride alcoholic solution (5% ferric chloride alcoholic solution 10ml adds hydrochloric acid 2ml, mixing), it is clear that hot blast blows to the speckle colour developing, in the test sample chromatograph, with the corresponding position of reference substance chromatograph on, show the speckle of same color;

Assay: (1) Cortex Moutan adopts high performance liquid chromatography, and chromatographic column is the C18 post, and with methanol: water=7: 3 is mobile phase; Detect wavelength: 274nm, number of theoretical plate calculates by the paeonol peak should be not less than 1500; Precision takes by weighing the paeonol reference substance, makes the reference substance solution that contains paeonol 16 μ g among every 1ml with dissolve with methanol; Get capsule, tablet 0.3g under the content uniformity item respectively, or get pill, granule 3g, the accurate title, decide, the accurate methanol 25ml that adds claims to decide weight, supersound process 30 minutes, put coldly, supply the weight that subtracts mistake, shake up with methanol, filter, get subsequent filtrate 1ml, put in the 5ml measuring bottle, add methanol to scale, shake up, the microporous filter membrane filtration with 0.45 μ m promptly gets need testing solution; Accurate respectively reference substance solution and each 15 μ l of need testing solution of drawing inject hplc determination content; In this oral formulations, contain Cortex Moutan in the capsule, must not be less than 3mg/g in paeonol; Contain Cortex Moutan in the tablet in paeonol, must not be less than 1mg/g; Contain Cortex Moutan in the granule in paeonol, must not be less than 0.4mg/g; Contain Cortex Moutan in the pill in paeonol, must not be less than 0.5mg/g;

(2) Fructus Corni is got capsule, tablet, pill or the granule under the content uniformity item respectively, porphyrize, mixing is got fine powder 5g, the accurate title, decide, put in the apparatus,Soxhlet's, add diethyl ether, reflux 5 hours, the extracting solution evaporate to dryness, residue adds dehydrated alcohol: the mixed liquor of chloroform=3: 2, slight fever make dissolving and quantitatively to 5ml, as need testing solution; Other gets the ursolic acid reference substance, adds dehydrated alcohol and makes the solution that every 1ml contains 0.5mg, in contrast product solution; According to the test of Chinese Pharmacopoeia thin layer chromatography, draw above-mentioned need testing solution 10 μ l, reference substance solution 4 μ l and 8 μ l, put respectively on same silica gel g thin-layer plate, with cyclohexane extraction: chloroform: ethyl acetate: formic acid=25: 15: 5: 2 is developing solvent, launches, take out, dry, spray is with 10% ethanol solution of sulfuric acid, it is clear to dry by the fire to the speckle colour developing at 110 ℃, take out, cover onesize glass plate on the lamellae, use immobilization with adhesive tape on every side, scan wavelength according to the Chinese Pharmacopoeia thin layer chromatography scanning: λ _S=520nm, λ _R=700nm measures test sample trap integrated value and reference substance trap integrated value, calculates, promptly; In this oral formulations, contain Fructus Corni in the capsule, must not be less than 0.3mg/g in ursolic acid; Contain Fructus Corni in the tablet in ursolic acid, must not be less than 0.1mg/g; Contain Fructus Corni in the granule in ursolic acid, must not be less than 0.05mg/g; Contain Fructus Corni in the pill in ursolic acid, must not be less than 0.02mg/g.

The embodiment of the invention 2:

Differentiate: get the fine powder of capsule, tablet, granule or pill respectively, put microscopically and observe: the dendritic agglomerate of irregular branch is colourless, meets chloral hydrate liquid and dissolves; Hyphae colorless or light brown, diameter 4～6 μ m;

Assay: (1) Cortex Moutan adopts high performance liquid chromatography, and chromatographic column is the C8 post, and with acetonitrile: water=1: 9 is mobile phase; Detect wavelength: 200nm, number of theoretical plate calculates by the paeonol peak should be not less than 1000; Precision takes by weighing the paeonol reference substance, makes the reference substance solution that contains paeonol 10 μ g among every 1ml with dissolve with methanol; Get capsule, tablet 0.1g under the content uniformity item respectively, or get pill, granule 1g, the accurate title, decide, the accurate methanol 25ml that adds claims to decide weight, supersound process 10 minutes, put coldly, supply the weight that subtracts mistake, shake up with methanol, filter, get subsequent filtrate 1ml, put in the 5ml measuring bottle, add methanol to scale, shake up, the microporous filter membrane filtration with 0.65 μ m promptly gets need testing solution; Accurate respectively reference substance solution and each 5 μ l of need testing solution of drawing inject hplc determination content; In this oral formulations, contain Cortex Moutan in the capsule, must not be less than 3mg/g in paeonol; Contain Cortex Moutan in the tablet in paeonol, must not be less than 1mg/g; Contain Cortex Moutan in the granule in paeonol, must not be less than 0.4mg/g; Contain Cortex Moutan in the pill in paeonol, must not be less than 0.5mg/g;

(2) Fructus Corni is got capsule, tablet, pill or the granule under the content uniformity item respectively, porphyrize, mixing is got fine powder 0.5g, the accurate title, decide, put in the apparatus,Soxhlet's, add diethyl ether, reflux 1 hour, the extracting solution evaporate to dryness, residue adds dehydrated alcohol: the mixed liquor of chloroform=1: 9, slight fever make dissolving and quantitatively to 5ml, as need testing solution; Other gets the ursolic acid reference substance, adds dehydrated alcohol and makes the solution that every 1ml contains 0.1mg, in contrast product solution; According to the test of Chinese Pharmacopoeia thin layer chromatography, draw each 3 μ l of above-mentioned need testing solution and reference substance solution, put respectively on same silica gel g thin-layer plate, with cyclohexane extraction: chloroform: ethyl acetate: formic acid=10: 25: 1: 5 is developing solvent, launches, and takes out, dry, spray is with 10% ethanol solution of sulfuric acid, and it is clear to dry by the fire to the speckle colour developing at 110 ℃, takes out, cover onesize glass plate on the lamellae, use immobilization with adhesive tape on every side, scan wavelength according to the Chinese Pharmacopoeia thin layer chromatography scanning: λ _S=200nm, λ _R=600nm measures test sample trap integrated value and reference substance trap integrated value, calculates, promptly; In this oral formulations, contain Fructus Corni in the capsule, must not be less than 0.3mg/g in ursolic acid; Contain Fructus Corni in the tablet in ursolic acid, must not be less than 0.1mg/g; Contain Fructus Corni in the granule in ursolic acid, must not be less than 0.05mg/g; Contain Fructus Corni in the pill in ursolic acid, must not be less than 0.02mg/g.

The embodiment of the invention 3:

Differentiate: get capsule, tablet or pill 0.5g respectively; Or get granule 3g, and the 20ml that adds diethyl ether, reflux 0.5 hour filters, and filtrate is reclaimed ether, and residue adds acetone 0.2ml makes dissolving, as need testing solution; Other gets the paeonol reference substance, adds acetone and makes the solution that every 1ml contains 0.5ml, in contrast product solution; According to the test of Chinese Pharmacopoeia thin layer chromatography, draw each 2 μ l of above-mentioned two kinds of solution, put respectively on same silica gel g thin-layer plate, with cyclohexane extraction: ethyl acetate=1: 9 is developing solvent, launches, and takes out, dry, spray is with 5% acid ferric chloride alcoholic solution (5% ferric chloride alcoholic solution 10ml adds hydrochloric acid 2ml, mixing), it is clear that hot blast blows to the speckle colour developing, in the test sample chromatograph, with the corresponding position of reference substance chromatograph on, show the speckle of same color;

Assay: Cortex Moutan adopts high performance liquid chromatography, and chromatographic column is the C4 post, and with methanol: water=9: 1 is mobile phase; Detect wavelength: 500nm, number of theoretical plate calculates by the paeonol peak should be not less than 1000; Precision takes by weighing the paeonol reference substance, makes the reference substance solution that contains paeonol 20 μ g among every 1ml with dissolve with methanol; Get capsule, tablet 0.5g under the content uniformity item respectively, or get pill, granule 5g, the accurate title, decide, the accurate methanol 25ml that adds claims to decide weight, supersound process 60 minutes, put coldly, supply the weight that subtracts mistake, shake up with methanol, filter, get subsequent filtrate 1ml, put in the 5ml measuring bottle, add methanol to scale, shake up, the microporous filter membrane filtration with 0.25 μ m promptly gets need testing solution; Accurate respectively reference substance solution and each 20 μ l of need testing solution of drawing inject hplc determination content; In this oral formulations, contain Cortex Moutan in the capsule, must not be less than 3mg/g in paeonol; Contain Cortex Moutan in the tablet in paeonol, must not be less than 1mg/g; Contain Cortex Moutan in the granule in paeonol, must not be less than 0.4mg/g; Contain Cortex Moutan in the pill in paeonol, must not be less than 0.5mg/g.

The embodiment of the invention 4:

(2) get capsule, tablet or pill 5g respectively; Or get granule 10g, and the 100ml that adds diethyl ether, reflux 3 hours filters, and filtrate is reclaimed ether, and residue adds acetone 1ml makes dissolving, as need testing solution; Other gets the paeonol reference substance, adds acetone and makes the solution that every 1ml contains 2ml, in contrast product solution; According to the test of Chinese Pharmacopoeia thin layer chromatography, draw each 15 μ l of above-mentioned two kinds of solution, put respectively on same silica gel g thin-layer plate, with cyclohexane extraction: ethyl acetate=9: 1 is developing solvent, launches, and takes out, dry, spray is with 5% acid ferric chloride alcoholic solution (5% ferric chloride alcoholic solution 10ml adds hydrochloric acid 2ml, mixing), it is clear that hot blast blows to the speckle colour developing, in the test sample chromatograph, with the corresponding position of reference substance chromatograph on, show the speckle of same color;

Assay: Fructus Corni is got capsule, tablet, pill or the granule under the content uniformity item respectively, porphyrize, mixing is got fine powder 10g, the accurate title, decide, put in the apparatus,Soxhlet's, add diethyl ether, reflux 8 hours, the extracting solution evaporate to dryness, residue adds dehydrated alcohol: the mixed liquor of chloroform=9: 1, slight fever make dissolving and quantitatively to 5ml, as need testing solution; Other gets the ursolic acid reference substance, adds dehydrated alcohol and makes the solution that every 1ml contains 1mg, in contrast product solution; According to the test of Chinese Pharmacopoeia thin layer chromatography, draw each 15 μ l of above-mentioned need testing solution and reference substance solution, put respectively on same silica gel g thin-layer plate, with cyclohexane extraction: chloroform: ethyl acetate: formic acid=50: 10: 10: 0.5 is developing solvent, launches, and takes out, dry, spray is with 10% ethanol solution of sulfuric acid, and it is clear to dry by the fire to the speckle colour developing at 110 ℃, takes out, cover onesize glass plate on the lamellae, use immobilization with adhesive tape on every side, scan wavelength according to the Chinese Pharmacopoeia thin layer chromatography scanning: λ _S=600nm, λ _R=900nm measures test sample trap integrated value and reference substance trap integrated value, calculates, promptly; In this oral formulations, contain Fructus Corni in the capsule, must not be less than 0.3mg/g in ursolic acid; Contain Fructus Corni in the tablet in ursolic acid, must not be less than 0.1mg/g; Contain Fructus Corni in the granule in ursolic acid, must not be less than 0.05mg/g; Contain Fructus Corni in the pill in ursolic acid, must not be less than 0.02mg/g.

The embodiment of the invention 5:

Assay: (1) Cortex Moutan adopts high performance liquid chromatography, and chromatographic column is the C18 post, and with acetonitrile: water=3: 7 is mobile phase; Detect wavelength: 400nm, number of theoretical plate calculates by the paeonol peak should be not less than 1000; Precision takes by weighing the paeonol reference substance, makes the reference substance solution that contains paeonol 12 μ g among every 1ml with dissolve with methanol; Get capsule, tablet 0.4g under the content uniformity item respectively, or get pill, granule 4g, the accurate title, decide, the accurate methanol 25ml that adds claims to decide weight, supersound process 40 minutes, put coldly, supply the weight that subtracts mistake, shake up with methanol, filter, get subsequent filtrate 1ml, put in the 5ml measuring bottle, add methanol to scale, shake up, the microporous filter membrane filtration with 0.45 μ m promptly gets need testing solution; Accurate respectively reference substance solution and each 10 μ l of need testing solution of drawing inject hplc determination content; In this oral formulations, contain Cortex Moutan in the capsule, must not be less than 3mg/g in paeonol; Contain Cortex Moutan in the tablet in paeonol, must not be less than 1mg/g; Contain Cortex Moutan in the granule in paeonol, must not be less than 0.4mg/g; Contain Cortex Moutan in the pill in paeonol, must not be less than 0.5mg/g;

(2) Fructus Corni is got capsule, tablet, pill or the granule under the content uniformity item respectively, porphyrize, mixing is got fine powder 2g, the accurate title, decide, put in the apparatus,Soxhlet's, add diethyl ether, reflux 4 hours, the extracting solution evaporate to dryness, residue adds dehydrated alcohol: the mixed liquor of chloroform=3: 7, slight fever make dissolving and quantitatively to 5ml, as need testing solution; Other gets the ursolic acid reference substance, adds dehydrated alcohol and makes the solution that every 1ml contains 0.3mg, in contrast product solution; According to the test of Chinese Pharmacopoeia thin layer chromatography, draw each 5 μ l of above-mentioned need testing solution and reference substance solution, put respectively on same silica gel g thin-layer plate, with cyclohexane extraction: chloroform: ethyl acetate: formic acid=20: 20: 8: 4 is developing solvent, launches, and takes out, dry, spray is with 10% ethanol solution of sulfuric acid, and it is clear to dry by the fire to the speckle colour developing at 110 ℃, takes out, cover onesize glass plate on the lamellae, use immobilization with adhesive tape on every side, scan wavelength according to the Chinese Pharmacopoeia thin layer chromatography scanning: λ _S=520nm, λ _R=700nm measures test sample trap integrated value and reference substance trap integrated value, calculates, promptly; In this oral formulations, contain Fructus Corni in the capsule, must not be less than 0.3mg/g in ursolic acid; Contain Fructus Corni in the tablet in ursolic acid, must not be less than 0.1mg/g; Contain Fructus Corni in the granule in ursolic acid, must not be less than 0.05mg/g; Contain Fructus Corni in the pill in ursolic acid, must not be less than 0.02mg/g.

Claims

1. the method for quality control of the oral formulations of enriching yin and nourishing kidney, this oral formulations comprises capsule, tablet, granule and pill, it is characterized in that: described method of quality control mainly comprise in character, inspection, discriminating, the assay project partly or entirely; Wherein differentiate the microscopical identification comprise the Poria medical material, differentiate that with the paeonol reference substance thin layer of Cortex Moutan medical material in the preparation differentiates; Assay comprises to be measured paeonol, content of ursolic acid in the preparation.

2. according to the method for quality control of the oral formulations of the described enriching yin and nourishing kidney of claim 1, it is characterized in that: the discrimination method of Cortex Moutan is to be contrast with the paeonol reference substance in this preparation, is the thin layer discrimination method of developing solvent with cyclohexane extraction: ethyl acetate=1-9: 9-1.

3. according to the method for quality control of the oral formulations of claim 1 or 2 described enriching yin and nourishing kidney, it is characterized in that: discrimination method comprise following project partly or entirely:

4. according to the method for quality control of the oral formulations of the described enriching yin and nourishing kidney of claim 3, it is characterized in that: concrete discrimination method comprise following project partly or entirely:

(2) get capsule, tablet or pill 0.5-5g respectively; Or get granule 3-10g, and the 20-100ml that adds diethyl ether, reflux 0.5-3 hour, filter, filtrate is reclaimed ether, and residue adds acetone 0.2-1ml makes dissolving, as need testing solution; Other gets the paeonol reference substance, adds acetone and makes the solution that every 1ml contains 0.5-2ml, in contrast product solution; Test according to the Chinese Pharmacopoeia thin layer chromatography, drawing each 2-15 μ l of above-mentioned two kinds of solution, put respectively on same silica gel g thin-layer plate, is developing solvent with cyclohexane extraction: ethyl acetate=1-9: 9-1, launch, take out, dry, spray is with 5% acid ferric chloride alcoholic solution, it is clear that hot blast blows to the speckle colour developing, in the test sample chromatograph, with the corresponding position of reference substance chromatograph on, show the speckle of same color; Described " 5% acid ferric chloride alcoholic solution " adds hydrochloric acid 2ml mixing by 5% ferric chloride alcoholic solution 10ml and gets.

5. according to the method for quality control of the oral formulations of the described enriching yin and nourishing kidney of claim 1, it is characterized in that: the content assaying method of paeonol is to be chromatographic column with C18 or C4 or C8 post in this preparation, is the high performance liquid chromatography of mobile phase with methanol or acetonitrile: water=1-9: 9-1.

6. according to the method for quality control of the oral formulations of the described enriching yin and nourishing kidney of claim 1, it is characterized in that: the content of ursolic acid assay method is with cyclohexane extraction in this preparation: chloroform: ethyl acetate: formic acid=10-50: 10-25: 1-10: 0.5-5 is the thin layer chromatography scanning of developing solvent.

7. according to the method for quality control of the oral formulations of claim 1,5 or 6 described enriching yin and nourishing kidney, it is characterized in that: content assaying method is:

(2) Fructus Corni is got capsule, tablet, granule or the pill under the content uniformity item respectively, porphyrize, mixing is got fine powder, the accurate title, decide, put in the apparatus,Soxhlet's, add diethyl ether, heating and refluxing extraction, the extracting solution evaporate to dryness, residue adds the mixed liquor of dehydrated alcohol: chloroform=1-9: 9-1, and slight fever makes dissolving and quantitative, as need testing solution; Other gets the ursolic acid reference substance, adds anhydrous alcohol solution, in contrast product solution; Test according to the Chinese Pharmacopoeia thin layer chromatography, draw above-mentioned need testing solution and reference substance solution, put respectively on same silica gel g thin-layer plate, with cyclohexane extraction: chloroform: ethyl acetate: formic acid=10-50: 10-25: 1-10: 0.5-5 is developing solvent, launches, and takes out, dry, spray is with 10% ethanol solution of sulfuric acid, and it is clear to dry by the fire to the speckle colour developing at 110 ℃, takes out, cover onesize glass plate on the lamellae, use immobilization with adhesive tape on every side, scan wavelength according to the Chinese Pharmacopoeia thin layer chromatography scanning: λ s=200-600nm, λ R=600-900nm, measure test sample trap integrated value and reference substance trap integrated value, calculate, promptly; In this oral formulations, contain Fructus Corni in the capsule, must not be less than 0.3mg/g in ursolic acid; Contain Fructus Corni in the tablet in ursolic acid, must not be less than 0.1mg/g; Contain Fructus Corni in the granule in ursolic acid, must not be less than 0.05mg/g; Contain Fructus Corni in the pill in ursolic acid, must not be less than 0.02mg/g.

8. according to the method for quality control of the oral formulations of the described enriching yin and nourishing kidney of claim 7, it is characterized in that: concrete content assaying method is:

(2) Fructus Corni is got capsule, tablet, pill or the granule under the content uniformity item respectively, porphyrize, mixing is got fine powder 0.5g-10g, the accurate title, decide, put in the apparatus,Soxhlet's, add diethyl ether, reflux 1-8 hour, the extracting solution evaporate to dryness, residue adds the mixed liquor of dehydrated alcohol: chloroform=1-9: 9-1, and slight fever makes dissolving also quantitatively to 5ml, as need testing solution; Other gets the ursolic acid reference substance, adds dehydrated alcohol and makes the solution that every 1ml contains 0.1-1mg, in contrast product solution; Test according to the Chinese Pharmacopoeia thin layer chromatography, draw each 3-15 μ l of above-mentioned need testing solution and reference substance solution, put respectively on same silica gel g thin-layer plate, with cyclohexane extraction: chloroform: ethyl acetate: formic acid=10-50: 10-25: 1-10: 0.5-5 is developing solvent, launches, and takes out, dry, spray is with 10% ethanol solution of sulfuric acid, and it is clear to dry by the fire to the speckle colour developing at 110 ℃, takes out, cover onesize glass plate on the lamellae, use immobilization with adhesive tape on every side, scan wavelength according to the Chinese Pharmacopoeia thin layer chromatography scanning: λ s=200-600nm, λ R=600-900nm, measure test sample trap integrated value and reference substance trap integrated value, calculate, promptly; In this oral formulations, contain Fructus Corni in the capsule, must not be less than 0.3mg/g in ursolic acid; Contain Fructus Corni in the tablet in ursolic acid, must not be less than 0.1mg/g; Contain Fructus Corni in the granule in ursolic acid, must not be less than 0.05mg/g; Contain Fructus Corni in the pill in ursolic acid, must not be less than 0.02mg/g.

9. according to the method for quality control of the oral formulations of the described enriching yin and nourishing kidney of claim 1, it is characterized in that: described method of quality control comprises:

10. according to the method for quality control of the oral formulations of the described enriching yin and nourishing kidney of claim 9, it is characterized in that: described method of quality control comprises:

(2) get capsule, tablet or pill 0.5-5g respectively; Or get granule 3-10g, and the 20-100ml that adds diethyl ether, reflux 0.5-3 hour, filter, filtrate is reclaimed ether, and residue adds acetone 0.2-1ml makes dissolving, as need testing solution; Other gets the paeonol reference substance, adds acetone and makes the solution that every 1ml contains 0.5-2ml, in contrast product solution; Test according to the Chinese Pharmacopoeia thin layer chromatography, drawing each 2-15 μ l of above-mentioned two kinds of solution, put respectively on same silica gel g thin-layer plate, is developing solvent with cyclohexane extraction: ethyl acetate=1-9: 9-1, launch, take out, dry, spray is with 5% acid ferric chloride alcoholic solution, it is clear that hot blast blows to the speckle colour developing, in the test sample chromatograph, with the corresponding position of reference substance chromatograph on, show the speckle of same color; Described " 5% acid ferric chloride alcoholic solution " adds hydrochloric acid 2ml mixing by 5% ferric chloride alcoholic solution 10ml and gets;