Development of a Simple Quantification Method for Hypochlorous Acid Using Smart Devices and Test Strips

A simple analysis method for hypochlorous acid using a test strip and a smartphone has been developed. Hypochlorous acid is a component with a high bactericidal effect among bactericidal agents, however it is not possible to directly measure the colorimetricity of hypochlorous acid with commercially...

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Bibliographic Details
Published inBUNSEKI KAGAKU Vol. 72; no. 1.2; pp. 45 - 49
Main Authors MANAKA, Atsushi, SHIBATA, Yoshiyuki, TAKEUCHI, Yoshimi, FURUKAWA, Tomofumi, TAFU, Masamoto
Format Journal Article
LanguageEnglish
Japanese
Published The Japan Society for Analytical Chemistry 05.01.2023
Subjects
hypochlorous acid
smartphone
test strip
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Summary:A simple analysis method for hypochlorous acid using a test strip and a smartphone has been developed. Hypochlorous acid is a component with a high bactericidal effect among bactericidal agents, however it is not possible to directly measure the colorimetricity of hypochlorous acid with commercially available test papers, and it is necessary to calculate the concentration from the results of colorimetric measurement of pH and total residual chlorine concentration. In this method, we have developed a simple analysis method for hypochlorous acid using a smartphone with original application software. The results show that the proposed method has sufficient sensitivity and accuracy as a simple method. Moreover, because of less susceptibility to interferences in the measurement environment, the hypochlorous acid can be simply quantified by holding the colorimetric plate and the color-plated test paper in front of the camera.
ISSN:0525-1931
DOI:10.2116/bunsekikagaku.72.45