MANGANESE DETECTION

原文（中国語）

An embodiment a method for measuring an amount of manganese in an aqueous sample, including: reducing, using a dechlorination reagent, wherein the dechlorination reagent comprises iron(II) and potassium iodide; oxidizing, under an alkaline condition using sodium hydroxide, Mn(II) to Mn(IV) in the aqueous sample, and chelating, using etidronic acid (HEDP), Fe(II) and Fe(III) in the aqueous sample, oxidizing an amount of 3,3′,5,5′-tetramethylbenzidine (TMB) with Mn(IV); and measuring, using a colorimetric indicator, the amount of manganese within the aqueous sample, by measuring an absorbance intensity at a wavelength of the oxidized amount of 3,3′,5,5′-tetramethylbenzidine (TMB). Other aspects are described and claimed.