论文信息 - Neotetrazolium chloride : A new analytical reagent for determination of chromium

Neotetrazolium chloride : A new analytical reagent for determination of chromium

ABSTRACT The optimum conditions for the formation of an ion-associate between chlorochromate ion and Neotetrazolium chloride (NTC) were found. The molar ratio NTC:Cr in the extracted ion-associate was found to be 1:2. Beer's law was obeyed in the range 0.05 – 1.5 μg ml−1 Cr(VI). The molar absorptivity determined at 255 nm, was 3.12±0.06 × 104 L mol−1 cm−1. The method was used for determination of chromium in steels, various types of soils and plants.

M. Kamburova

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