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Flow-injection catalytic determination of molybdenum with blamperometric detection in a microprocessor-controlled system

✍ Scribed by M. Trojanowicz; A. Hulanicki; W. Matuszewski; M. Pałys; A. Fuksiewicz; T. Hulanicka-Michalak; S. Raszewski; J. Szyller; W. Augustynlak

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
711 KB
Volume
188
Category
Article
ISSN
0003-2670

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✦ Synopsis

The flow-injection determination of molybdenum(V1) is based on its catalytic effect on the oxidation of iodide by hydrogen peroxide. The triiodide ion formed in this reaction is detected amperometrically in a flow-through cell containing two platinum wire electrodes polarized at 100 mV. After optimization of the measuring conditions, the detection limit is 1.2 rg 1-l Mo(V1) and the linear range extends to 1 mg 1-l. Interference of various metal ions and their removal is described. The procedure was tested on the determination of molybdenum(V1) in soil extracts.

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