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Issue 4, 1987
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Determination of molybdenum with gallic acid and hydroxylamine

Abstract

A method for the spectrophotometric determination of molybdenum with gallic acid and hydroxylamine is proposed. The spectrum of the complex formed has a stable absorption maximum at 420 nm in acidic media and the molar absorptivity is 4.84 × 103 l mol–1 cm–1 in the range in which the complex obeys Beer's law (3.02–25.12 µg ml–1 of Mo). The effects of the concentration of reagent, pH, time and temperature were investigated, together with the stoicheiometry of the complex, the reproducibility and precision of the method and its susceptibility to interferences.

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Article information


Analyst, 1987,112, 477-479
Article type
Paper

Determination of molybdenum with gallic acid and hydroxylamine

M. xmlns="http://www.rsc.org/schema/rscart38"> <sup>a</sup> </small>. P. Bermejo-Barrera, J. F. Vazquez-Gonzalez, M. xmlns="http://www.rsc.org/schema/rscart38"> <. C. Pazos-Naveira and F. Bermejo-Martinez, Analyst, 1987, 112, 477
DOI: 10.1039/AN9871200477

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