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Investigations on adsorption potentiometry. Part X: Derivative adsorption chronopotentiometry of chromium(III)

โœ Scribed by Wenrui Jin; Xianglan Jia; Jianmin Lu

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
524 KB
Volume
7
Category
Article
ISSN
1040-0397

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โœฆ Synopsis

The study concerns a very sensitive electroanalytical method, based on derivative chronopotentiometry of the chromium (111) complex with 2-(5'-bromo-2'-pyridylazo)-5-diethyl aminophenol (5-Br-PADAP) accumulated adsorptively on the surface of a hanging mercury drop electrode. The detection limit is 6 x IO-" mol/L for a preconcentration time of 6min. The mechanism of the electrode reaction has been investigated in detail.

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