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Analysis method of packed column gas chromatography for hydrogen peroxide operating fluid

A gas chromatographic analysis, gas chromatographic technology, applied in the field of analysis of hydrogen peroxide working fluid, to achieve the effect of good reproducibility, high sensitivity and simple method

Inactive Publication Date: 2003-06-18
中国石油化工股份有限公司巴陵分公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most manufacturers at home and abroad use capillary columns to analyze anthraquinones, but it is the first case that the content of anthraquinones has been successfully analyzed by packed column gas chromatography.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: This example is the determination of the standard solution. Accurately weigh tetrahydro 2-ethylanthraquinone and 2-ethylanthraquinone standard substance to be 0.0502 grams and 0.0509 grams respectively, and add the prepared Internal standard solution 1ml, diluted to the mark with toluene, shake well. Under the selected chromatographic conditions: vaporization temperature 300°C, detection temperature 240°C, carrier gas 47ml / min, gas 30ml / min, auxiliary gas 300ml / min, injection volume 2μl, and tetrahydrogen in the standard liquid was measured. 2-ethylanthraquinone and 2-ethylanthraquinone were 50.20 g / l and 50.86 g / l, respectively.

Embodiment 2

[0035] Embodiment 2: This example is the determination of anthraquinone working solution sample. Take 1ml of working solution, add 1ml of prepared internal standard solution into a 50ml volumetric flask at the same time, dilute to the mark with toluene, and shake well. Under the selected chromatographic conditions: vaporization temperature 300°C, detection temperature 240°C, carrier gas 47ml / min, gas 30ml / min, auxiliary gas 300ml / min, 2μl sample was taken for analysis, and tetrahydro 2- Ethylanthraquinone and 2-ethylanthraquinone are 15.60g / l and 129.04g / l, respectively.

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PUM

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Abstract

The present invention relates to the analysis method of filling cylinder gas chromatography for oxydol working liquid. The method is characterized in that toluene is used as a solution, OV-17 as the fixing liquid for the cylinder of gas chromatography. The gas chromatography quantitative analysis for 2-ethyl-anthraquinone and tetrahydro-2-ethyl antraquinone is performed using filling cylinder made of stainless steel and FID sensor. The method is of high sensitivity and high accuracy and has simple and convenient operation.

Description

technical field [0001] The invention relates to an analysis method for hydrogen peroxide working liquid by packed column gas chromatography. Background technique [0002] As a green chemical, hydrogen peroxide will continue to develop vigorously as a key project during the "Tenth Five-Year Plan" period. The production method of hydrogen peroxide is mainly the anthraquinone method, and the essence of the hydrogen peroxide production process by the anthraquinone method is: tetrahydro 2-ethylanthraquinone and 2-ethylanthraquinone (hereinafter referred to as anthraquinone) as working substances , dissolved in an organic solvent to form a working solution, anthraquinone is alternately hydrogenated and oxidized, and hydrogen peroxide is generated at the same time. Whether it is the production process or the laboratory catalytic process research, it is necessary to accurately determine the concentration of tetrahydro 2-ethylanthraquinone and 2-ethylanthraquinone in the working sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02
Inventor 李学梦洪洁段正康凌太平
Owner 中国石油化工股份有限公司巴陵分公司
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