CN208705295U - The detection device of gluconic acid sodium content in a kind of fermentation liquid - Google Patents
The detection device of gluconic acid sodium content in a kind of fermentation liquid Download PDFInfo
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Abstract
The utility model provides a kind of detection device of gluconic acid sodium content in fermentation liquid, including control-display system, photodetector system, quinaldine red-methanol solution bottle, glacial acetic acid bottle and perchloric acid-glacial acetic acid solution bottle；Control switch, external display screen and control system are provided in control-display system；Photodetector system includes light source, photoelectric detection system and titration cell, titration cell is connected to quinaldine red-methanol solution bottle, glacial acetic acid bottle and perchloric acid-glacial acetic acid solution bottle respectively, titration cell is arranged between light source and photoelectric detection system, and photoelectric detection system is used to detect the variation of color in titration cell.Use detection device provided by the utility model can be with gluconic acid sodium content in Accurate Determining fermentation liquid, sample measurement can be completed in 3min, and device provided by the utility model is easy to operate, structure is simple, without using expensive component, can be realized the monitoring of fermentation of Aspergillus niger production sodium gluconate process.
Description
Technical field
The utility model relates to compound test technical fields, and in particular to gluconic acid sodium content in a kind of fermentation liquid
Detection device.
Background technique
Sodium gluconate (C6H11O7It Na) is a kind of multi-hydroxy carboxy acid's sodium, appearance is white or light yellow crystalline powder.
Sodium gluconate is soluble easily in water, moderate notoxic, has saline taste, has excellent chelating ability, therefore be widely used in food
Product, building, chemical industry, medicine and other fields.In food service industry, sodium gluconate is a kind of important food additives, be can be used as
PH regulating stabilizer, edible salt substituting agent, flavor improver etc..In building trade, it is gentle that sodium gluconate is used as water-reducing agent
Solidifying agent, can enhance the intensity of concrete and extend setting time.In chemical industry, sodium gluconate is added in cleaning agent
Very ideal cleaning effect can be reached, be applied to the cleaning of vial and steel billet.In pharmaceuticals industry, sodium gluconate can be with
As water quality stabilizer and low sodium syndrome medicament.Therefore, the market demand of sodium gluconate is huge.
The production method of sodium gluconate mainly has fermentation method, electrolysis method and catalytic oxidation.Wherein fermentation method is a kind of
Effective production method, mainly using aspergillus niger as production strain.During fermentation of Aspergillus niger in real-time monitoring fermentation liquid
Gluconic acid na concn is critically important for predicting fermentation of Aspergillus niger process and fermentation process technique optimization being instructed to play the role of.Cause
This, find gluconic acid sodium content in effective fermentation liquid detection method value in ferment of sodium gluconate industry can be generated it is positive
Facilitation.
The detection method of sodium gluconate have non-aqueous titration, acetylacetone,2,4-pentanedione development process, azanol-ferric trichloride development process,
High performance liquid chromatography etc..Wherein, the measurement result error of acetylacetone,2,4-pentanedione development process is larger, azanol-ferric trichloride development process
Determination step is excessively complicated, is not easy to realize the real-time monitoring of fermentation process.There are mobile phases to chromatography for high performance liquid chromatography
Column is affected, high performance liquid chromatograph costly the problems such as.Non-aqueous titration measurement result is accurate, easy to operate, is not required to
Expensive instrument is wanted, is sodium gluconate assay in People's Republic of China (PRC) light industry standard QB/T 4484-2013
Standard method.But non-aqueous titration is glacial acetic acid reaction system, can only measure the gluconic acid sodium content in solid powder, no
The content of sodium gluconate in aqueous solution can be directly measured, therefore may not apply to sodium gluconate yield in fermentation production process
Detection.
Utility model content
The purpose of this utility model is to provide a kind of detection devices of gluconic acid sodium content in fermentation liquid, using this reality
Can be with gluconic acid sodium content in Accurate Determining fermentation liquid with the detection of novel offer, and apparatus structure provided by the utility model
Simply, without using expensive component.
In order to realize above-mentioned purpose of utility model, the utility model the following technical schemes are provided:
The utility model provides a kind of detection device of gluconic acid sodium content in fermentation liquid, including control-display system
System, photodetector system, quinaldine red-methanol solution bottle, glacial acetic acid bottle and perchloric acid-glacial acetic acid solution bottle, wherein the control
Be provided with control switch, external display screen and control system in system-display system, the control system respectively with the display
Screen, photodetector system, quinaldine red-methanol solution bottle, glacial acetic acid bottle and perchloric acid-glacial acetic acid solution bottle communication connection, institute
Control system is stated to the display screen, photodetector system, quinaldine red-methanol solution bottle, glacial acetic acid bottle and perchloric acid-ice vinegar
The working condition of acid solution bottle is controlled and is adjusted；The photodetector system includes light source, photoelectric detection system and titration
Pond, the titration cell are connected to the quinaldine red-methanol solution bottle, glacial acetic acid bottle and perchloric acid-glacial acetic acid solution bottle respectively,
The titration cell is arranged between the light source and photoelectric detection system, and the photoelectric detection system is for detecting face in titration cell
The variation of color.
Preferably, the titration cell and the quinaldine red-methanol solution bottle, glacial acetic acid bottle and perchloric acid-glacial acetic acid are molten
Be respectively arranged with peristaltic pump between liquid bottle, the control system and the peristaltic pump communicate to connect, the control system by pair
The working condition of the peristaltic pump is controlled and is adjusted realization to the quinaldine red-methanol solution bottle, glacial acetic acid bottle and height
Chloric acid-glacial acetic acid solution bottle working condition control and adjusting.
Preferably, the detection device further includes waste liquid bottle and sodium hydroxide solution bottle, the waste liquid bottle respectively with it is described
Titration cell is connected to sodium hydroxide solution bottle, the control system respectively with the waste liquid bottle and sodium hydroxide solution bottle communication link
It connects, the control system is controlled and adjusted to the working condition of the waste liquid bottle and sodium hydroxide solution bottle.
Preferably, it is arranged between the waste liquid bottle and the titration cell, between the waste liquid bottle and sodium hydroxide solution bottle
There is peristaltic pump, the control system and the peristaltic pump communicate to connect, and the control system passes through the work to the peristaltic pump
State is controlled and is adjusted the control and adjusting realized to the titration cell and sodium hydroxide solution bottle working condition.
Preferably, the bottom of the titration cell is provided with magnetic stirring apparatus, and the titration cell is internally provided with rotor.
Preferably, sealing-plug is provided at the top of the titration cell.
Preferably, the waste liquid bottle, quinaldine red-methanol solution bottle, glacial acetic acid bottle and perchloric acid-glacial acetic acid solution bottle
Top is respectively arranged with sealing ring.
Preferably, the waste liquid bottle, quinaldine red-methanol solution bottle, glacial acetic acid bottle and perchloric acid-glacial acetic acid solution bottle
Top is respectively arranged with check valve.
The utility model provides a kind of detection device of gluconic acid sodium content in fermentation liquid, provided by the utility model
Detection device has the advantages that
1. device provided by the utility model can realize titration process automatically, and be judged automatically according to photocurrent variations rate
Titration end-point, avoids titration by hand and naked eyes determine the error of titration end-point.
2. methodology experiment shows to measure gluconic acid sodium content in fermentation liquid using device provided by the utility model
The method range of linearity wide (0~2.4mol/L, i.e. 0~523.5g/L, saturated concentration when close to 15 DEG C of sodium gluconate
529.1g/L, including the sodium gluconate concentration range in entire fermentation of Aspergillus niger process fermentation liquid), the rate of recovery up to 99% with
On, precision, stability and accuracy are good, sample measurement can be completed in 3min, and device provided by the utility model is grasped
Make simplicity, structure is simple, without using expensive component.Can be convenient using detection device provided by the utility model, quickly,
Gluconic acid sodium content in Accurate Determining fermentation liquid, may be implemented using device provided by the utility model to fermentation of Aspergillus niger mistake
The real-time monitoring of gluconic acid na concn in journey, and then instruct and optimize fermentation process.
Detailed description of the invention
Fig. 1 be fermentation liquid provided by the utility model in gluconic acid sodium content detection device structural schematic diagram, 1,
2,3,4,5- peristaltic pumps；6- waste liquid bottle；7- quinaldine red-methanol solution bottle；8- glacial acetic acid bottle；9- perchloric acid-glacial acetic acid solution
Bottle；10-NaOH solution bottle；11- sealing-plug；12- light source；13- photoelectric detection system；14- rotor；15- magnetic stirring apparatus；
16- titration cell；17- display screen；18- switch；19- control system；20,21,22,23- sealing rings；24,25,26,27- is unidirectional
Valve；
Fig. 2 is the linear of the gluconic acid sodium content obtained in embodiment 1 using detection device provided by the utility model
Relation curve；
Fig. 3 is to produce gluconic acid using detection means measure fermentation of Aspergillus niger provided by the utility model in embodiment 1
The variation diagram of gluconic acid sodium content during sodium.
Specific embodiment
The utility model provides a kind of detection device of gluconic acid sodium content in fermentation liquid, as shown in Figure 1, including control
System-display system, photodetector system, quinaldine red-methanol solution bottle 7, glacial acetic acid bottle 8 and perchloric acid-glacial acetic acid solution bottle
9, wherein control switch 18, external display screen 17 and control system 19, the control are provided in the control-display system
System 19 processed respectively with the display screen 17, photodetector system, quinaldine red-methanol solution bottle 7, glacial acetic acid bottle 8 and high chlorine
Acid-glacial acetic acid solution bottle 9 communicates to connect, and the control system 19 is to the display screen 17, photodetector system, quinaldine red-
Methanol solution bottle 7, glacial acetic acid bottle 8 and perchloric acid-glacial acetic acid solution bottle 9 working condition are controlled and are adjusted；The photoelectricity
Detection system includes light source 12, photoelectric detection system 13 and titration cell 16, the titration cell 16 respectively with the quinaldine red-first
Alcoholic solution bottle 7, glacial acetic acid bottle 8 are connected to perchloric acid-glacial acetic acid solution bottle 9, and the titration cell 16 is arranged in 12 He of light source
Between photoelectric detection system 13, the photoelectric detection system 13 is used to detect the variation of color in titration cell 16.
In the embodiments of the present invention, the titration cell 16 and the quinaldine red-methanol solution bottle 7, glacial acetic acid
Peristaltic pump is respectively arranged between bottle 8 and perchloric acid-glacial acetic acid solution bottle 9；Specifically, the titration cell 16 and the quinaldine
It is provided with peristaltic pump 3 between red-methanol solution bottle 7, is provided with peristaltic pump 4 between the titration cell 16 and the glacial acetic acid bottle 8,
Peristaltic pump 5 is provided between the titration cell 16 and the perchloric acid-glacial acetic acid solution bottle 9.In the embodiments of the present invention
In, the control system 19 is communicated to connect with the peristaltic pump 3, peristaltic pump 4 and peristaltic pump 5 respectively, and the control system 19 is logical
It crosses and is controlled and adjusted realization to the quinaldine red-first to the working condition of the peristaltic pump 3, peristaltic pump 4 and peristaltic pump 5
Alcoholic solution bottle 7, glacial acetic acid bottle 8 and perchloric acid -9 working condition of glacial acetic acid solution bottle control and adjusting.
In the embodiments of the present invention, the detection device further includes waste liquid bottle 6 and sodium hydroxide solution bottle 10, institute
It states waste liquid bottle 6 to be connected to the titration cell 16 and sodium hydroxide solution bottle 10 respectively, the control system 19 and the waste liquid bottle 6
It is communicated to connect with sodium hydroxide solution bottle 10, the control system 19 is respectively to the waste liquid bottle 6 and sodium hydroxide solution bottle 10
Working condition controlled and adjusted.The utility model is realized by waste liquid bottle 6 and sodium hydroxide solution bottle 10 and is tied to titration
System after beam in titration cell 16 is neutralized.
In the embodiments of the present invention, between the waste liquid bottle 6 and the titration cell 16, the waste liquid bottle 6 and hydrogen
Peristaltic pump is provided between sodium hydroxide solution bottle 10；Specifically, being provided between the waste liquid bottle 6 and the titration cell 16 compacted
Dynamic pump 2, is provided with peristaltic pump 1 between the waste liquid bottle 6 and the sodium hydroxide solution bottle 10.In the embodiments of the present invention
In, the control system 9 is communicated to connect with the peristaltic pump 2 and peristaltic pump 1 respectively, and the control system 9 passes through to described compacted
The working condition of dynamic pump 2 and peristaltic pump 1 is controlled and is adjusted realization to 10 work of the titration cell 16 and sodium hydroxide solution bottle
Make the control and adjusting of state.
In the embodiments of the present invention, the bottom of the titration cell 16 is provided with magnetic stirring apparatus 15, the drop
That determines pond 16 is internally provided with rotor 14；The utility model is stirring titration process by magnetic stirring apparatus 15 and rotor 14
It is carried out under the conditions of mixing.
In the embodiments of the present invention, the top of the titration cell 16 is provided with sealing-plug 11；The utility model is logical
Crossing sealing-plug 11 carries out titration process under air-proof condition.
In the embodiments of the present invention, the top of the waste liquid bottle 6 is provided with sealing ring 20, quinaldine red-methanol
The top of solution bottle 7 is provided with sealing ring 21, the top of glacial acetic acid bottle 8 is provided with sealing ring 22, perchloric acid-glacial acetic acid solution bottle
9 top is provided with sealing ring 23；The utility model makes waste liquid bottle 6 and NaOH solution bottle 10 and titration cell 16 by sealing ring 20
Between liquid communication carried out under air-proof condition, quinaldine red-methanol is made by sealing ring 21, sealing ring 22 and sealing ring 23
The liquid communication of solution bottle 7, glacial acetic acid bottle 8 and perchloric acid-between glacial acetic acid solution bottle 9 and titration cell 16 under air-proof condition into
Row.
In the embodiments of the present invention, the top of the waste liquid bottle 6 is provided with check valve 24, quinaldine red-methanol
The top of solution bottle 7 is provided with check valve 25, the top of glacial acetic acid bottle 8 is provided with check valve 26, perchloric acid-glacial acetic acid solution bottle
9 top is provided with check valve 27；The utility model is sucked or is discharged air by check valve, avoids occurring positive/negative-pressure in bottle
Power.
In the present invention, by adopting the above technical scheme the detection device to gluconic acid sodium content in fermentation liquid into
When row detection, due to titration time and titration volumes direct proportionality, using the concentration of sodium gluconate as abscissa, with titration
Time is ordinate, available titrimetric standard curve.Two definition concentration (M are detected by two-point calibration1And M2) calibration point
(T1And T2), wherein (concentration of sodium gluconate is M to titration deionized water1=0) required titration time is T when1, titration
(concentration of sodium gluconate is M to standard glucose acid sodium solution2) when required titration time T2, control in the detection device
System processed is according to T1、T2Data fit effective titrimetric standard curve equation:
AM+BT+C=0----------------------- (1)
By (M1,T1)、(M2,T2) bring into formula (1) derive can obtain,
A=T2-T1；B=M1-M2；C=M2T1-M1T2
Due to M1=0,
Then A=T2-T1；B=-M2；C=M2T1
(T2-T1)M-M2T+M2T1=0
M=M2(T-T1)/(T2-T1)-----------------------(2)
Titrating required titration time when sample to be tested is Tx, by TxBring titrimetric standard curve equation (2), the inspection into
Control system is according to T in survey devicexValue calculates the gluconic acid na concn (M in sample to be tested automaticallyx), Mx=M2(Tx-T1)/
(T2-T1)。
In the present invention, by adopting the above technical scheme the detection device to gluconic acid sodium content in fermentation liquid into
The method of row detection, preferably includes following steps:
(1) T is demarcated1: 18 are turned on the switch, control system 19 controls peristaltic pump 3 will be in quinaldine red-methanol solution bottle 7
Quinaldine red-methanol solution (mass concentration be 0.01~1%, volume is 0.01~0.3 mL) be pumped into (flow velocity is 0.01~
0.1mL/s) in titration cell 16, the glacial acetic acid (volume is 1~20mL) in glacial acetic acid bottle 8 is pumped into (flow velocity by control peristaltic pump 4
For in 2~4mL/s) titration cell 16, while the operating of magnetic stirring apparatus 15 is controlled, rotor 14 is made to rotate (50~200r/ of revolving speed
Min), to mix reaction system；Control system 19 controls the display of display screen 17 " calibration T1", sealing-plug 11 is opened, by deionization
Water (volume is 0.01~0.5mL) is added in titration cell 16, and control system 19 controls peristaltic pump 5 for perchloric acid-glacial acetic acid solution
Perchloric acid-glacial acetic acid solution (concentration is 0.01~0.5 mol/L) in bottle 9 is pumped into (flow velocity is 0.01~0.2mL/s) titration
In pond 16, while the light source 12 for controlling 16 one end of titration cell shines, and the photoelectric detection system 13 of 16 other end of titration cell is remembered automatically
Photocurrent variations are recorded, titration end-point is judged automatically according to photocurrent variations rate, records titration time T1, demarcate T1Terminate, display screen
7 display T1Time；
Empty titration cell, neutralization reaction liquid: after titration, control system 19 controls light source 12, photoelectric detection system 13
It is closed with magnetic stirring apparatus 15, while controlling peristaltic pump 2 and the reaction solution in titration cell 16 is pumped into (flow velocity is 2~20mL/s)
In waste liquid bottle 6, control peristaltic pump 1 by NaOH solution bottle 10 NaOH solution (concentration be 1~5mol/L, volume be 2~
It 60mL) is pumped into (flow velocity is 2~20mL/s) waste liquid pool 6, neutralization reaction liquid；
Clean titration cell, neutralize cleaning solution: control system 19 controls peristaltic pump 4 for the glacial acetic acid (volume in glacial acetic acid bottle 8
It is pumped into (flow velocity is 2~4mL/s) titration cell 16 for 1~20mL), while controlling the operating of magnetic stirring apparatus 15, make rotor 14
Rotation (revolving speed is 50~200r/min, and the time is 10~15s), cleans titration cell 16；After cleaning, control system
19 control magnetic stirring apparatus 15 of system are closed, at the same control peristaltic pump 2 glacial acetic acid in titration cell 16 is pumped into (flow velocity is 2~
20 mL/s) in waste liquid bottle 6, by the NaOH solution in NaOH solution bottle 10, (concentration is 1~5mol/L, volume to control peristaltic pump 1
It is pumped into (flow velocity is 2~20mL/s) waste liquid pool 6 for 2~60mL), neutralizes glacial acetic acid；
(2) T is demarcated2: T is demarcated according to the method in step (1)2, the difference is that, control system 19 controls display screen
17 displays " calibration T2", sealing-plug 11 is opened, (concentration is 0.1~2.4mol/L, and volume is by standard glucose acid sodium solution
0.01~1mL) it is added in titration cell 16, after reaching titration end-point, record titration time T2, demarcate T2Terminate, display screen 7 is shown
T2Time；
It empties titration cell, neutralization reaction liquid: emptying titration cell, neutralization reaction liquid according to the method in step (1)；
It cleans titration cell, neutralize cleaning solution: according to method cleaning titration cell, the neutralization cleaning solution in step (1)；
(3) sample measures: sample measurement is carried out according to the method in step (1), the difference is that, control system 19 is controlled
Display screen 17 processed shows " sample measurement ", opens sealing-plug 11, and sample to be tested (fermentation liquid, volume are 0.01~0.5mL) is added
Enter in titration cell 16, after reaching titration end-point, titration time T used in record titration sample to be testedx, sample, which measures, to be terminated；Control
System processed is according to TxValue calculates the gluconic acid na concn in sample to be tested automatically, and display screen 7 shows TxTime and gluconic acid
Na concn display screen 7 shows TxTime；
It empties titration cell, neutralization reaction liquid: emptying titration cell, neutralization reaction liquid according to the method in step (1)；
It cleans titration cell, neutralize cleaning solution: according to method cleaning titration cell, the neutralization cleaning solution in step (1)；
Start sample measurement next time after cleaning titration cell under the control of control system 19.
Below in conjunction with the embodiments of the present invention, the technical solution in the utility model is carried out clear, complete
Ground description.Obviously, the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.Base
In the embodiments of the present invention, institute obtained by those of ordinary skill in the art without making creative efforts
There are other embodiments, fall within the protection scope of the utility model.
Embodiment 1
Gluconic acid sodium content in fermentation liquid is measured using detection device provided by the utility model, as a result specifically
It is as follows:
(1) sodium gluconate is mixed with water, compound concentration be respectively 0mol/L, 0.2mol/L, 0.4 mol/L,
0.6mol/L、0.8mol/L、1mol/L、1.2mol/L、1.4mol/L、1.6mol/L、 1.8mol/L、2mol/L、2.2mol/L
With the gluconic acid sodium standard solution of 2.4mol/L, using detection device provided by the utility model to the glucose in fermentation liquid
Sour sodium content is measured, using sodium gluconate concentration of standard solution as abscissa, using detection means measure result as ordinate
Linear relationship curve is drawn, sees Fig. 2.
As shown in Figure 2, detection means measure result is consistent with sodium gluconate concentration of standard solution, regression equation y=
0.9968x+0.0012, R2=0.9999.
(2) Precision Experiment
Fermentation liquid is centrifuged (10000r/min, 10min), takes supernatant as sample to be tested, is surveyed using the utility model
Determine device replication 8 times, measurement result is shown in Table 1.
1 Precision Experiment measurement result of table
As shown in Table 1, the fluctuation of concentration of sodium gluconate is little, and the relative standard deviation (RSD) between each concentration is
0.0023, illustrate the method variation lines using gluconic acid sodium content in detection means measure fermentation liquid provided by the utility model
Small, the precision with higher of number.
(3) stability experiment
Fermentation liquid is centrifuged (10000r/min, 10min), takes supernatant as sample to be tested, every 10min using this
The detection device that utility model provides is measured sample to be tested, and measurement result is shown in Table 2.
2 stability experiment measurement result of table
As shown in Table 2, the fluctuation of concentration of sodium gluconate is little, and the relative standard deviation (RSD) between each concentration is
0.0038, illustrate the method variation lines using gluconic acid sodium content in detection means measure fermentation liquid provided by the utility model
Small, the stability with higher of number.
(4) accuracy is tested
Using detection device provided by the utility model to fermentation liquid carry out recovery of standard addition experiment, verification method it is accurate
Degree, measurement result are shown in Table 3.
3 accuracy measuring result of table
As shown in Table 3, sample recovery rate is between 96.50~100.25%, and average recovery rate is 98.63~
Between 100.03%, illustrate the method using gluconic acid sodium content in detection means measure fermentation liquid provided by the utility model
The rate of recovery is good, can satisfy the needs of sodium gluconate assay in fermentation liquid.
(5) fermentation of Aspergillus niger production sodium gluconate process is supervised using detection device provided by the utility model
It surveys, specific as follows:
Seed culture medium: potato 200g/L, glucose 20g/L, MgSO4·7H2O 1g/L, KH2PO41.5g/L
CaCO34g/L；
Fermentation medium: glucose 217.6g/L, MgSO4·7H2O 0.01g/L, KH2PO40.13g/L, urea 0.2g/
L；
Aspergillus niger seed liquor is inoculated into the 500mL shaking flask equipped with 250mL fermentation medium, shaking table culture (120r/
Min, 28 DEG C).In superclean bench every using NaOH solution (4mol/L) to adjust pH value to 5.5 for 24 hours, and take appropriate fermentation
Liquid is centrifuged (10000r/min, 6min), supernatant is taken, using detection means measure provided by the utility model grape therein
Saccharic acid na concn, measurement result are shown in Fig. 3.
From the figure 3, it may be seen that detection device provided by the utility model can be realized fermentation of Aspergillus niger production sodium gluconate mistake
The monitoring of journey.
As seen from the above embodiment, use detection device provided by the utility model can be with grape in Accurate Determining fermentation liquid
Saccharic acid sodium content, and apparatus structure provided by the utility model is simple, component without using valuableness, can be realized aspergillus niger hair
The monitoring of ferment production sodium gluconate process.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (8)
1. the detection device of gluconic acid sodium content in a kind of fermentation liquid, including control-display system, photodetector system, quinoline
Which pyridine is red-methanol solution bottle, glacial acetic acid bottle and perchloric acid-glacial acetic acid solution bottle, wherein it is arranged in the control-display system
Have control switch, external display screen and a control system, the control system respectively with the display screen, photodetector system,
Quinaldine red-methanol solution bottle, glacial acetic acid bottle and perchloric acid-glacial acetic acid solution bottle communication connection, the control system is to described
Display screen, photodetector system, quinaldine red-methanol solution bottle, glacial acetic acid bottle and perchloric acid-glacial acetic acid solution bottle work shape
State is controlled and is adjusted；The photodetector system includes light source, photoelectric detection system and titration cell, the titration cell difference
It is connected to the quinaldine red-methanol solution bottle, glacial acetic acid bottle and perchloric acid-glacial acetic acid solution bottle, the titration cell setting exists
Between the light source and photoelectric detection system, the photoelectric detection system is used to detect the variation of color in titration cell.
2. detection device according to claim 1, which is characterized in that the titration cell and the quinaldine red-methanol are molten
Peristaltic pump, the control system and the wriggling are respectively arranged between liquid bottle, glacial acetic acid bottle and perchloric acid-glacial acetic acid solution bottle
Pump communication connection, the control system controlled and adjusted by the working condition to the peristaltic pump realization to the quinoline which
The control and adjusting of red-methanol solution bottle, glacial acetic acid bottle and perchloric acid-the glacial acetic acid solution bottle working condition of pyridine.
3. detection device according to claim 1 or 2, which is characterized in that it further include waste liquid bottle and sodium hydroxide solution bottle,
The waste liquid bottle is connected to the titration cell and sodium hydroxide solution bottle respectively, the control system respectively with the waste liquid bottle and
The communication connection of sodium hydroxide solution bottle, the control system carry out the working condition of the waste liquid bottle and sodium hydroxide solution bottle
Control and adjusting.
4. detection device according to claim 3, which is characterized in that between the waste liquid bottle and the titration cell, described
Peristaltic pump is provided between waste liquid bottle and sodium hydroxide solution bottle, the control system and the peristaltic pump communicate to connect, described
It is molten to the titration cell and sodium hydroxide that control system is controlled and adjusted realization by the working condition to the peristaltic pump
The control and adjusting of liquid bottle working condition.
5. detection device according to claim 4, which is characterized in that the bottom of the titration cell is provided with magnetic agitation dress
It sets, the titration cell is internally provided with rotor.
6. detection device according to claim 5, which is characterized in that be provided with sealing-plug at the top of the titration cell.
7. detection device according to claim 3, which is characterized in that the waste liquid bottle, quinaldine red-methanol solution bottle,
Sealing ring is respectively arranged at the top of glacial acetic acid bottle and perchloric acid-glacial acetic acid solution bottle.
8. detection device according to claim 7, which is characterized in that the waste liquid bottle, quinaldine red-methanol solution bottle,
Check valve is respectively arranged at the top of glacial acetic acid bottle and perchloric acid-glacial acetic acid solution bottle.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108732297A (en) * | 2018-07-23 | 2018-11-02 | 山东省科学院生物研究所 | The detection method and device of gluconic acid sodium content in a kind of zymotic fluid |
| CN111024888A (en) * | 2019-12-27 | 2020-04-17 | 杭州绿洁环境科技股份有限公司 | Method for testing permanganate index |
| CN112816615A (en) * | 2021-01-07 | 2021-05-18 | 沈阳力创环保科技有限公司 | Chloride ion detector and chloride ion detection method |
| CN117607346A (en) * | 2024-01-17 | 2024-02-27 | 长春黄金研究院有限公司 | Method for measuring sodium gluconate in water quality |
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2018
- 2018-07-23 CN CN201821165950.XU patent/CN208705295U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108732297A (en) * | 2018-07-23 | 2018-11-02 | 山东省科学院生物研究所 | The detection method and device of gluconic acid sodium content in a kind of zymotic fluid |
| CN111024888A (en) * | 2019-12-27 | 2020-04-17 | 杭州绿洁环境科技股份有限公司 | Method for testing permanganate index |
| CN111024888B (en) * | 2019-12-27 | 2022-07-12 | 杭州绿洁环境科技股份有限公司 | Method for testing permanganate index |
| CN112816615A (en) * | 2021-01-07 | 2021-05-18 | 沈阳力创环保科技有限公司 | Chloride ion detector and chloride ion detection method |
| CN112816615B (en) * | 2021-01-07 | 2023-06-20 | 沈阳力创环保科技有限公司 | Chloride ion detector and chloride ion detection method |
| CN117607346A (en) * | 2024-01-17 | 2024-02-27 | 长春黄金研究院有限公司 | Method for measuring sodium gluconate in water quality |
| CN117607346B (en) * | 2024-01-17 | 2024-05-28 | 长春黄金研究院有限公司 | Method for measuring sodium gluconate in water quality |
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