CN202614733U - Device for detecting content of toluene formyl benzotriazole passivators in transformer oil - Google Patents
Device for detecting content of toluene formyl benzotriazole passivators in transformer oil Download PDFInfo
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- CN202614733U CN202614733U CN 201220109433 CN201220109433U CN202614733U CN 202614733 U CN202614733 U CN 202614733U CN 201220109433 CN201220109433 CN 201220109433 CN 201220109433 U CN201220109433 U CN 201220109433U CN 202614733 U CN202614733 U CN 202614733U
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Abstract
The utility model relates to a device for detecting the content of toluene formyl benzotriazole passivators in the transformer oil. The device comprises solid-phase extraction unit and a high performance liquid chromatograph (HPLC). The solid-phase extraction unit comprises solid-phase extraction columns, a vacuum tank, a vacuum pump and a flow control valve. The solid-phase extraction columns are arranged into four and connected with the vacuum pump, and the vacuum tank is connected with the vacuum pump; and the HPLC comprises a mobile-phase storage tank, a pump, a sample storage tank, a sample automatic injection unit, a chromatographic column, a detection unit, a waste liquid storage tank and a data analysis unit. The pump is connected with the mobile-phase storage tank, the sample automatic injection unit is connected with the sample storage tank, the chromatographic column is connected with the sample automatic injection unit and the pump, the detection unit is connected with the chromatographic column, the waste liquid storage tank is connected with the detection unit, and the data analysis unit is connected with the detection unit. Compared with the prior art, the device for detecting the content of toluene formyl benzotriazole passivators in the transformer oil has the advantages of being simple in instrument maintenance, easy to operate, small in sample demanded amount, high in detection accuracy and the like.
Description
Technical field
The utility model relates to a kind of checkout equipment, especially relates to a kind of equipment that detects toluyl groups benzotriazole passivator content in the transformer oil.
Background technology
Toluyl groups benzotriazole passivator is a kind of oil-soluble material, and the matrix that adds its sample of passivator in the transformer oil to is mainly transformer oil.The potpourri that transformer oil is nonpolar by long chain alkane, naphthenic hydrocarbon and a small amount of aromatic hydrocarbon etc. or the low pole compound is formed, matrix component is complicated.According to the different solubilities of passivator toluyl groups benzotriazole in different organic solvents; Adopt the multiple solvent such as potpourri, ethanol, normal heptane of pure methyl alcohol, methyl alcohol and water to carry out liquid-liquid extraction; And regulate tests such as potential of hydrogen, hydrolysis; Find that the liquid-liquid extraction mode can't realize effectively separating of passivator toluyl groups benzotriazole and interfering material, obtains the peak value of response of liquid chromatography.Therefore consider to adopt solid-phase extraction device that it is carried out Treatment Analysis.
SPE (Solid Phase Extraction is called for short SPE) is meant and utilizes solid adsorbent that the target compound in the fluid sample is adsorbed; Remove the matrix and the interfering compound of sample; Use the eluent wash-out again, reach the purpose of separation and enrichment target compound.
Wash-out (elution) is meant through changing solvent or changing the interaction between analyte and the solvent, certain compounds is got rid of from adsorbent, with wash-out target analytes optionally.
Activation (solvent excitation) is to instigate post bed solvation, thereby produces an interactional environment that makes sample substrate and adsorbent that repeatability can take place.
Process is built SPE principle analysis and SPE test-bed, can take the sample preparation mode of positive SPE to passivator in the transformer oil.
Positive SPE principle is the compound and the partition factor difference of background impurities in the different fillers of SPE SPE post (Solid Phase Extraction post) that utilizes in the sample, matees corresponding eluting solvent, and compound is separated with impurity.Stationary phase is polar material such as silicon post; Carry out drip washing with weak polar solvents such as n-pentanes; Interaction between the polar functional group of reservation passivator effective functional group of toluyl groups benzotriazole and adsorbent surface; Use moving phase 70% methyl alcohol and the 30% aqueous mixtures wash-out passivator of liquid chromatographic detection again, carry out sample enrichment and purifying.
Chromatography is to utilize to be studied material composition partition factor in stationary phase and moving phase fine difference is arranged; When two make relative convective motion mutually; Be studied material and between two phases, carry out the repeated multiple times distribution; Make former fine difference become very big difference, thereby each component is separated, reach the purpose of some physicochemical property of separation, analysis and mensuration material then.Liquid phase chromatography is extremely important branch in the stratographic analysis, is applied to chemico-analytic field and is far longer than other analytical approachs.After carrying out pre-service, need analyze it through high performance liquid chromatography, obtain the peak value of response of liquid chromatography, obtain the content of toluyl groups benzotriazole passivator.
The utility model content
The purpose of the utility model is exactly to provide a kind of instrument maintenance simple for the defective that overcomes above-mentioned prior art existence; Processing ease; The sample demand is few, the equipment of toluyl groups benzotriazole passivator content in the high detection transformer oil of accuracy of measurement.
The purpose of the utility model can realize through following technical scheme:
A kind of equipment that detects toluyl groups benzotriazole passivator content in the transformer oil comprises:
Solid-phase extraction device: comprise solid-phase extraction column, vacuum tank, vacuum pump and flow control valve, described solid-phase extraction column is provided with four, and is connected with vacuum tank, and described vacuum tank is connected with vacuum pump and flow control valve;
High performance liquid chromatograph: comprise moving phase storage tank, pump, sample storage tank, sample automated injection device, chromatographic column, pick-up unit, waste tank and data analysis set-up; Described pump is connected with the moving phase storage tank; The sample automated injection device is connected with the sample storage tank, and chromatographic column is connected with sample automated injection device and pump, and pick-up unit is connected with chromatographic column; Waste tank is connected with pick-up unit, and data analysis set-up is connected with pick-up unit.
Described solid-phase extraction column is made up of column jecket, sieve plate, stationary phase and female luer, and described sieve plate is provided with two, is located at the bottom and the middle part of column jecket, and described stationary phase is located between two sieve plates, and described solid-phase extraction column end is provided with female luer.
Be provided with vacuum tube in the described vacuum tank, vacuum tube is arranged on the female luer below.
Described stationary phase be weight 500mg, pH scope between 2～8, particle diameter is at the adsorbent of 55～125 μ m.
Described pump is 1525 commercially available type binary gradient pumps.
Described chromatographic column is commercially available Symmetry C
8Chromatographic column.
Described pick-up unit comprises light path member, flow cell, photoelectric commutator and system controlled by computer assembly.
Compared with prior art, the utility model instrument maintenance is simple, processing ease, and the sample demand is few, and accuracy of measurement is high.
Description of drawings
Fig. 1 is the solid-phase extraction device structural representation;
Fig. 2 is the high performance liquid chromatograph structural representation;
Fig. 3 is the solid-phase extraction column structural representation.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
A kind of equipment that detects toluyl groups benzotriazole passivator content in the transformer oil; Comprise solid-phase extraction device; Its structure is as shown in Figure 1, comprises solid-phase extraction column 1, vacuum tank 3, vacuum pump 2 and flow control valve, and solid-phase extraction column establishes 1 has four; And be connected with vacuum tank 3, vacuum tank 3 connects vacuum pumps 2.High performance liquid chromatograph; Its structure is as shown in Figure 2; Comprise moving phase storage tank 5, pump 6, sample storage tank 7, sample automated injection device 8, chromatographic column 9, pick-up unit 10, waste tank 11 and data analysis set-up 12, pump 6 is connected with moving phase storage tank 5, and sample automated injection device 8 is connected with sample storage tank 7; Chromatographic column 9 is connected with sample automated injection device 8 and pump 6; Pick-up unit 10 is connected with chromatographic column 9, and waste tank 11 is connected with pick-up unit 10, and data analysis set-up 12 is connected with pick-up unit 10.
Solid-phase extraction column 1, structure is as shown in Figure 3, is made up of column jecket 13, sieve plate 14, stationary phase 15 and female luer 16; Sieve plate 14 is provided with two; Be located at the bottom and the middle part of column jecket 13, stationary phase 15 is located between two sieve plates 14, and the solid-phase extraction column end is provided with female luer 16.
Be provided with vacuum tube 4 in the vacuum tank 3, vacuum tube 4 is arranged on female luer 16 belows.Stationary phase 15 be weight 500mg, pH scope between 2～8, particle diameter is at the adsorbent of 55～125 μ m.Pump 6 is 1525 commercially available type binary gradient pumps.Chromatographic column 9 is commercially available Symmetry C
8Chromatographic column.Pick-up unit 10 comprises light path member, flow cell, photoelectric commutator and system controlled by computer assembly.
The utility model is applicable to toluyl groups benzotriazole (Irgamet39 in the transformer insulation oil
TM) assay of passivator, in addition, the benzotriazole in the transformer oil (BTA), TTA (TTA) passivator are measured and also can be adopted the utility model to detect.
Claims (6)
1. equipment that detects toluyl groups benzotriazole passivator content in the transformer oil is characterized in that equipment comprises:
Solid-phase extraction device: comprise solid-phase extraction column, vacuum tank, vacuum pump and flow control valve, described solid-phase extraction column is provided with four, and is connected with vacuum tank, and described vacuum tank is connected with vacuum pump and flow control valve;
High performance liquid chromatograph: be connected with solid-phase extraction device; Comprise moving phase storage tank, pump, sample storage tank, sample automated injection device, chromatographic column, pick-up unit, waste tank and data analysis set-up, described pump is connected with the moving phase storage tank, and the sample automated injection device is connected with the sample storage tank; Chromatographic column is connected with sample automated injection device and pump; Pick-up unit is connected with chromatographic column, and waste tank is connected with pick-up unit, and data analysis set-up is connected with pick-up unit.
2. a kind of equipment that detects toluyl groups benzotriazole passivator content in the transformer oil according to claim 1; It is characterized in that; Described solid-phase extraction column is made up of column jecket, sieve plate, stationary phase and female luer, and described sieve plate is provided with two, is located at the bottom and the middle part of column jecket; Described stationary phase is located between two sieve plates, and described solid-phase extraction column end is provided with female luer.
3. a kind of equipment that detects toluyl groups benzotriazole passivator content in the transformer oil according to claim 1 is characterized in that, is provided with vacuum tube in the described vacuum tank, and vacuum tube is arranged on the female luer below.
4. a kind of equipment that detects toluyl groups benzotriazole passivator content in the transformer oil according to claim 1 is characterized in that described pump is 1525 type binary gradient pumps.
5. a kind of equipment that detects toluyl groups benzotriazole passivator content in the transformer oil according to claim 1 is characterized in that described chromatographic column is Symmetry C
8Chromatographic column.
6. a kind of equipment that detects toluyl groups benzotriazole passivator content in the transformer oil according to claim 1 is characterized in that described pick-up unit comprises light path member, flow cell, photoelectric commutator and system controlled by computer assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220109433 CN202614733U (en) | 2012-03-21 | 2012-03-21 | Device for detecting content of toluene formyl benzotriazole passivators in transformer oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220109433 CN202614733U (en) | 2012-03-21 | 2012-03-21 | Device for detecting content of toluene formyl benzotriazole passivators in transformer oil |
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| Publication Number | Publication Date |
|---|---|
| CN202614733U true CN202614733U (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220109433 Expired - Lifetime CN202614733U (en) | 2012-03-21 | 2012-03-21 | Device for detecting content of toluene formyl benzotriazole passivators in transformer oil |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860735A (en) * | 2017-12-21 | 2018-03-30 | 上海微谱化工技术服务有限公司 | The analysis method of pcb board aqueous cleaning agent |
| CN109932230A (en) * | 2019-03-29 | 2019-06-25 | 广东省生物工程研究所（广州甘蔗糖业研究所） | A kind of nitrate reduction instrument and its application method |
| CN111617514A (en) * | 2019-02-27 | 2020-09-04 | 中国水产科学研究院 | Solid phase extraction column with adjustable sample loading volume |
-
2012
- 2012-03-21 CN CN 201220109433 patent/CN202614733U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860735A (en) * | 2017-12-21 | 2018-03-30 | 上海微谱化工技术服务有限公司 | The analysis method of pcb board aqueous cleaning agent |
| CN111617514A (en) * | 2019-02-27 | 2020-09-04 | 中国水产科学研究院 | Solid phase extraction column with adjustable sample loading volume |
| CN109932230A (en) * | 2019-03-29 | 2019-06-25 | 广东省生物工程研究所（广州甘蔗糖业研究所） | A kind of nitrate reduction instrument and its application method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121219 |