DOI: 10.21276/ajptr
Tue, 21 May 2019

Spectrophotometric Determination of Molybdate (MoO42-) Using Tannic acid as a Reagent.


Harshada Rajan Desai1, Pooja Vinod Jagasia1*

1.Department of Chemistry B.N.Bandodkar College of Science, Thane-400601. University of Mumbai, Maharashtra, India



Simple, sensitive and accurate spectrophotometric method was proposed for the micro determination of molybdate(MoO42-) using Tannic acid as a reagent. The method was based on the formation of 1:2 orange colored complex between the anion and TA. The optimum conditions for the determination were established. The Beer’s law was applicable in the range of 0.2-5.0 µg/cm3. The method detection limit, limit of quantification, molar absorptivity, Sandell’s sensitivity, coefficient of correlation (β) were reported. The method is free from common interferences. The method was successfully applied for the determination of Mo (VI) in environmental water samples and pharmaceutical products.

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