Analysis method for simultaneously quantifying peracetic acid and hydrogen peroxide in air and application

By combining derivatization reagents with high performance liquid chromatographs in air sampling, the problem that the prior art cannot simultaneously detect peracetic acid and hydrogen peroxide in air is solved, and efficient and accurate simultaneous quantitative analysis is achieved.

CN119643741APending Publication Date: 2025-03-18THE SECOND AFFILIATED HOSPITAL OF GUANGZHOU MEDICAL UNIVERSITY +1
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Patent Information

Application Number
CN202411807776.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

The prior art cannot simultaneously detect peracetic acid and hydrogen peroxide in the air, and the existing methods have problems such as large errors and are susceptible to interference from environmental factors.

Method used

Using an analytical method including sampling and detection, the air to be tested is passed through a sampler equipped with a derivatization reagent, including methyl p-toluene sulfide and triphenylphosphine, and is then analyzed by a high performance liquid chromatograph to simultaneously quantify the content of peracetic acid and hydrogen peroxide.

Benefits of technology

It achieves accurate measurement of the content of peracetic acid and hydrogen peroxide in the air at the same time, with strong specificity, good repeatability, simple and easy operation, avoids interference with other substances on the results, and has wide application prospects.

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Abstract

The invention relates to the technical field of disinfectant peroxide quantitative detection, in particular to an analysis method for simultaneously quantifying peroxyacetic acid and hydrogen peroxide in air and application of the analysis method. To-be-detected air is driven by an air sampling pump to pass through a sampler filled with a derivatization reagent, so that the peroxyacetic acid and the hydrogen peroxide in the to-be-detected air are quantified when the to-be-detected air passes through the sampler; wherein the peracetic acid and the hydrogen peroxide fully react with the derivatization reagent, the generated derivatization product is subjected to membrane treatment, and the content of the peracetic acid and the content of the hydrogen peroxide can be obtained at the same time by utilizing a high performance liquid chromatograph for analysis. The derivatization reagent comprises a solvent and a solute, the solute comprises methyl p-toluene sulfide and triphenylphosphine, and the solvent is methanol or acetonitrile. The method is simple and easy to implement, high in specificity, good in repeatability, long in validity period under the proper preservation condition of the sample, capable of accurately quantifying the peracetic acid and the hydrogen peroxide in the air at the same time, reliable, low in cost and capable of being applied to detection of disinfectants in different scenes such as hospitals, sewage treatment plants and refuse landfills.
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