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在Ｈ３ＰＯ４体系中，钒对ＫＣｌＯ３氧化变色酸有强烈的催化作用，本文依此建立了催化动力学分光光度法测定钒的方法。本方法检出限为１．６×１０－１０ｇ·ｍｌ－１。
In the H3PO4 system, vanadium has a strong catalytic effect on KClO3 oxidation of chromotropic acid. In this paper, a catalytic kinetic spectrophotometric method for the determination of vanadium was established. The detection limit of this method is 1.6 × 10-10g · ml-1.