Sensitivity enhancement of pH indicator and its application in the evaluation of fish freshness.

Abstract

The sensitivity of pH indicators is always confined in acidic solvents used during the immobilization because of the large deviation from their color transition points. By regulating the pH of indicators using organic acid or base, the color transition points of indicators could be readily achieved and the sensitivity could be greatly enhanced. In this… (More)
DOI: 10.1016/j.talanta.2015.05.021

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