CHROMIUM MEASUREMENT REAGENT AND CHROMIUM MEASUREMENT METHOD

摘要

PROBLEM TO BE SOLVED: To provide a chromium measurement reagent enabling sufficient suppression of reduction in sensitivity with lapse of time and also to provide a chromium measurement reagent having high initial sensitivity.;SOLUTION: A chromium measurement reagent includes a solvent, and diphenylcarbazide and hydroxyl ammonium chloride contained in the solvent. In a chromium measurement method, absorbance is measured by reacting a sample solution and the chromium measurement reagent with each other under an acid condition.;COPYRIGHT: (C)2014,JPO&INPIT