A catalytic reaction for determination of nanomblar concentrations of Co(II), i.e., oxidation of L-adrenaline hydrochloride with H,O, in alkaline medium, is proposed. The reaction gives a low limit of detection of 2.5 X low9 M cd111 in the reaction mixture, good reproducibility with a relative stand
Spectrophotometric reaction rate method for the determination of molybdenum by its catalytic effect on the oxidation of pyrogallol red with hydrogen peroxide
β Scribed by A. A. Ensafi; A. Haghighi
- Publisher
- Springer
- Year
- 1998
- Tongue
- English
- Weight
- 87 KB
- Volume
- 360
- Category
- Article
- ISSN
- 1618-2650
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The use of a gallocyanine-bromate oxidation system for the direct determination of vanadium (0.020-100 ng/ml) with spectrophotometric detection is described. The decrease in absorbance results from the oxidation of gallocyanine by bromate in the presence of vanadium as a catalyst. The effects of imp