2006•Journal of Xinyang Normal UniversityRequires access

Determination of Trace Vanadium by Kinetic Catalytic Spectrophotometry

Wenjun Xu

Abstract

A new spectrophotometric method for the determination of trace amount Vanadium was developed.It is based on the fact that V(Ⅴ) can catalyze the decolorizing of methyl green with KIO_4 in the medium of H_3PO_4 and Vc.The linear range of Ⅴ(V) is 0.1~1.0 ng·mL~(-1),and the determination limit is 2.90×10~(-10)g·mL~(-1).The method has been used for the determination of trace Vanadium in celery and wheat with satisfactory results.

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Key concepts: Vanadium, Spectrophotometry, Detection limit, Chemistry, TRACE (psycholinguistics), Linear range, Catalysis, Kinetic energy