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HPLC (High Performance Liquid Chromatography) analysis method for sodium 3,3'-dithiodipropane sulfonate

A technology of sodium polydithiodipropane sulfonate and high performance liquid chromatography, which is applied in the field of analysis, can solve the problems of inability to accurately measure the concentration of compounds, large errors in measurement results, and inaccurate content determination, etc., and achieve short measurement cycles , Easy to operate, strong repeatable effect

Inactive Publication Date: 2016-05-25
湖北吉和昌化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the traditional methods for detecting sulfur groups, most of them use strong oxidants to oxidize sulfur-containing compounds into sulfone compounds. This reaction method has strict requirements on reaction conditions, such as temperature, amount of reactants, and reaction time, and has poor selectivity. The results have large errors and cannot be used to accurately determine the concentration of compounds
[0004] Magazine " chromatography ", the article that the 17th volume, the 6th issue of 1999 publishes: " HPLC method is measured simultaneously the multiple organic additives in acidic copper-plating brightener ", has reported and selects phenyl chromatographic column, mobile phase is: V (methanol ): V (water)=30:70, flow velocity is 1.5mL / min, under the condition that detection wavelength is 210nm, 2-mercaptobenzimidazole, ethylenethiourea, sodium polydithiodipropanesulfonate are separated, and simultaneously Determination of their mass concentration, this method uses a phenyl chromatographic column, and the mobile phase is methanol and water. Although several substances are separated, the determination time is long and the content determination is not accurate enough

Method used

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  • HPLC (High Performance Liquid Chromatography) analysis method for sodium 3,3'-dithiodipropane sulfonate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1) High performance liquid chromatography conditions:

[0038] Chromatographic column: KromasilC18, 5μm, 250mm×4.6mm;

[0039] Mobile phase composition volume ratio: methanol: buffer solution = 10:90;

[0040] Buffer solution: 0.17mol / L acetic acid + 0.142mol / L triethylamine + ultrapure water;

[0041] Flow rate: 0.8mL / min;

[0042] Column temperature: 25°C;

[0043] Detector: UV detector;

[0044] Detection wavelength: 230nm;

[0045] 2) Preparation of mobile phase: Accurately pipette 5ml of glacial acetic acid and 10ml of triethylamine into a 1L volumetric flask. Prepare the mobile phase with a buffer solution volume ratio of 10:90, mix well, degas with an ultrasonic cleaner for half an hour, and cool to room temperature;

[0046] 3) Prepare standard solutions of sodium polydithiodipropanesulfonate with different concentrations: Accurately weigh 500.0 mg of imported sodium polydisulfidedipropanesulfonate in a 50ml volumetric flask, dissolve and constant volume w...

Embodiment 2

[0058] 1) High performance liquid chromatography conditions:

[0059] Chromatographic column: KromasilC18, 5μm, 250mm×4.6mm;

[0060] Mobile phase composition volume ratio: methanol: buffer solution = 20:80;

[0061] Buffer solution: 0.17mol / L acetic acid + 0.142mol / L triethylamine + ultrapure water;

[0062] Flow rate: 0.8mL / min;

[0063] Column temperature: 25°C;

[0064] Detector: UV detector;

[0065] Detection wavelength: 230nm;

[0066] 2) Preparation of mobile phase: Accurately pipette 5ml of glacial acetic acid and 10ml of triethylamine into a 1L volumetric flask. Prepare the mobile phase with a volume ratio of 20:80 to the buffer solution, mix well, degas with an ultrasonic cleaner for half an hour, and cool to room temperature;

[0067] 3) Prepare standard solutions of sodium polydithiodipropanesulfonate with different concentrations: Accurately weigh 500.0 mg of imported sodium polydisulfidedipropanesulfonate in a 50ml volumetric flask, dissolve and constant v...

Embodiment 3

[0074] 1) High performance liquid chromatography conditions:

[0075] Chromatographic column: KromasilC18, 5μm, 250mm×4.6mm;

[0076] Mobile phase composition volume ratio: methanol: buffer solution = 40:60;

[0077] Buffer solution: 0.17mol / L acetic acid + 0.142mol / L triethylamine + ultrapure water;

[0078] Flow rate: 0.8mL / min;

[0079] Column temperature: 25°C;

[0080] Detector: UV detector;

[0081] Detection wavelength: 230nm;

[0082] 2) Preparation of mobile phase: Accurately pipette 5ml of glacial acetic acid and 10ml of triethylamine into a 1L volumetric flask. Prepare the mobile phase with a buffer solution volume ratio of 10:90, mix well, degas with an ultrasonic cleaner for half an hour, and cool to room temperature;

[0083] 3) Prepare standard solutions of sodium polydithiodipropanesulfonate with different concentrations: Accurately weigh 500.0 mg of imported sodium polydisulfidedipropanesulfonate in a 50ml volumetric flask, dissolve and constant volume w...

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Abstract

The invention discloses a HPLC (High Performance Liquid Chromatography) analysis method for sodium 3,3'-dithiodipropane sulfonate and belongs to the technical field of analysis. The HPLC analysis method is characterized in that a high performance liquid chromatograph with an ultraviolet detector is used for determining; octadecyl silane is taken as a filling column, the size of a chromatographic column is 250mm (length)*4.6mm (inner diameter) and the grain size is 5 microns; methyl alcohol and a buffer solution in volume ratio of (0-50):(100-50) is taken as a flowing phase; the detection wavelength is 190-330nm, and the column temperature is at 10-60 DEG C; the speed of the flowing phase is 0.3-1.2mL / min; the feeding size of a sample is 20 micro liter; the buffer solution contains 0.17mol / L acetic acid, 0.142mol / L triethylamine and ultrapure water. The content of sodium 3,3'-dithiodipropane sulfonate in a to-be-detected sample can be quickly and accurately measured according to a standard curve established via a standard solution; the determination result error is small; the repeated operability is strong; the precision is less than 2.8%; the recovery rate is 96.7%-99.3%; the HPLC analysis method can be widely applied to the production process detection and product quality detection for industrial sodium 3,3'-dithiodipropane sulfonate.

Description

technical field [0001] The invention relates to the technical field of analysis, in particular to a high-performance liquid chromatography analysis method for sodium polydithiodipropane sulfonate. Background technique [0002] Sodium polydisulfide dipropane sulfonate, the product code is SPS, mainly used in electroplating acid copper plating. As an acidic copper plating intermediate, it is the main additive in copper plating additives, which can refine the crystallization of the plating layer and effectively increase the current density. In the entire acid copper brightener market, this product is in great demand and has excellent application effects. In the copper plating additive formula, the amount of SPS added is related to the application effect of the formula, light output speed and stability, so the SPS content is an important indicator for product quality control, and it is very necessary to accurately determine its content. [0003] In the traditional methods for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02
CPCG01N30/02G01N2030/027
Inventor 周世骏杨威黄开伟胡哲明瑞涛
Owner 湖北吉和昌化工科技有限公司
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