2002•Journal of Shenyang Institute of Aeronautcal EngineeringRequires access
Catalytic kinetic spectroplotometri determination of trace chromium
BI Shao-dan
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Abstract
A new catalytic method for determining trace Chromium has been studied,Chromium(Ⅵ) can catalyze the decolorization oxidation of methylene blue by hydrogen peroxide in acetate acid - acetate natrium medium. The detection limit of this method is 7.16×10-6gL-1。The linear range of determination is 0-2.5μg/25mLCr(Ⅵ). The method has been used to determine trace Cr(Ⅵ)in electroplating wastewater with satisfactory results。