Preparation of device and its evaluation for visual analysis based on ON/OFF color reaction

Atsushi MANAKA; Tihiro SAKAGAMI; Yu SATO; Shukuro IGARASHI; Masamoto TAFU; Mitsuteru IRIE

doi:10.11190/jer.17.95

Original Article

Preparation of device and its evaluation for visual analysis based on ON/OFF color reaction

Atsushi MANAKA, Tihiro SAKAGAMI, Yu SATO, Shukuro IGARASHI, Masamoto TAFU, Mitsuteru IRIE

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Keywords: Visual analysis, ON/OFF color reaction, Number of discoloring, Fluoride ion, Original attachment

JOURNAL FREE ACCESS

2014 Volume 17 Issue 2 Pages 95-98

DOI https://doi.org/10.11190/jer.17.95

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Abstract

A Visual determination based on ON/OFF color reaction is high visibility visual analysis because of determination by counting number of discoloring. On the other hand, there is some problems about operability in this method . Especially, there were necessary to large number of dispensing of reagents and sample. For this reason, original analytical device was made and their properties were examined in this study. As a result, one step visual analysis by counting number of discoloring was realized. Some solutions containing F- ion were simply determined in the concentration range of 0.8 to 6 ppm within few seconds.

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