A kind of peracetic acid measuring test paper and its measuring method

A technology of peracetic acid and test paper, applied in the field of chemical analysis, can solve the problems of hydrogen peroxide interference, variability, inactivation, etc., and achieve the effects of good stability, fast response time, and pollution prevention

Active Publication Date: 2020-04-14
GUANGDONG HUANKAI MICROBIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These existing reagents for detecting peracetic acid are highly susceptible to denaturation and inactivation during drying and storage; and when measuring peracetic acid, there is serious interference from hydrogen peroxide

Method used

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  • A kind of peracetic acid measuring test paper and its measuring method
  • A kind of peracetic acid measuring test paper and its measuring method
  • A kind of peracetic acid measuring test paper and its measuring method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The preparation method of embodiment 1 peracetic acid assay test paper

[0050] Use 80% ethanol solution to prepare 10.0g / L 4-aminoantipyrine, 4.5g / L methylparaben, 0.6g / L ferrous sulfate, 0.6g / L 5-sulfosalicylic acid, 2.0 g / L trans 1,2-cyclohexanediaminetetraacetic acid, 20.0g / L sulfamic acid mixed chromogenic solution (pH value not exceeding 2.0). The chromatographic filter paper was completely soaked in the above mixture for 10 minutes, the filter paper was taken out, and dried under vacuum at a temperature of 50°C. After drying, cut the filter paper into small pieces of 5 × 6 mm, and glue it on one end of a 5 × 80 mm strip-shaped bottom plate to make peracetic acid rapid determination test paper 1#.

Embodiment 2

[0051] The preparation method of embodiment 2 peracetic acid determination test paper

[0052] Use 80% ethanol solution to prepare 8.0g / L 4-aminoantipyrine, 3.0g / L salicylic acid, 1.0g / L manganese sulfate, 1.0g / L 5-sulfosalicylic acid, 2.0g / L antipyrine Formula 1, a mixed chromogenic solution of 2-cyclohexanediaminetetraacetic acid and 20.0g / L citric acid (pH value not exceeding 2.0). The chromatographic filter paper was completely soaked in the above mixture for 10 minutes, the filter paper was taken out, and dried under vacuum at a temperature of 50°C. After drying, cut the filter paper into small pieces of 5×6mm, and glue it on one end of a strip-shaped bottom plate of 5×80mm to make peracetic acid quick test paper 2#.

Embodiment 3

[0053] The preparation method of embodiment 3 peracetic acid determination test paper

[0054] Use 80% ethanol solution to prepare 5.0g / L 4-aminoantipyrine, 2.5g / L hydroquinone, 0.5g / L copper sulfate, 0.6g / L 5-sulfosalicylic acid, 2.5g / L A mixed chromogenic solution of trans-1,2-cyclohexanediaminetetraacetic acid and 20.0g / L sulfamic acid (pH value not exceeding 2.0). Soak the chromatographic filter paper completely in the above mixture for about 10 minutes, take out the filter paper, and dry it under vacuum at a temperature of 50°C. After drying, cut the filter paper into small pieces of 5×6mm, and glue it on one end of the strip-shaped bottom plate of 5×80mm to make peracetic acid quick test paper 3#.

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Abstract

The invention discloses determination test paper and a determination method of peracetic acid. The determination test paper of peracetic acid is prepared from mixed liquid comprising a developer, a catalyst, a stabilizing agent and a pH (potential of hydrogen) regulator. The test paper is quick in response, high in sensitivity, good in stability, easy and simple to operate and economical and practical for determination of peracetic acid and can quickly detect a peracetic acid content in a sample on site. The determination method has an obvious color development level, is good in stability, andcan cover up interference of hydrogen peroxide on the determination; a quality guarantee period can reach at least 12 months; the test paper used is small in area; a testing process is simple; otherinstruments and fittings are not required; the testing cost can be greatly saved; a handheld bottom plate of the test paper can avoid contamination of hands in a fetching process; and the test paper is very safe and reliable.

Description

technical field [0001] The invention belongs to the field of chemical analysis, in particular to a test paper for measuring peracetic acid and a measuring method thereof. Background technique [0002] Peracetic acid is a broad-spectrum, quick-acting, high-efficiency sterilizing agent. It is a strong oxidant that can kill all microorganisms, including viruses, bacteria, fungi and spores. It can be widely used in disinfection of various appliances and environments. . 0.2% solution contact for 10 minutes can basically achieve the purpose of sterilization. The main application areas are: bleaching agent for paper, paraffin, wood, starch, disinfectant for drinking water, food and prevention of infectious diseases in the pharmaceutical industry, oxidant and epoxy oxidant for the manufacture of propylene oxide, glycerin, caprolactam in the organic industry . [0003] The industrial product peracetic acid is generally a solution of 18-23% water, hydrogen peroxide and acetic acid....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/78
CPCG01N21/78
Inventor 黄报亮邓金花张丽蓉秦惠
Owner GUANGDONG HUANKAI MICROBIAL SCI & TECH
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