Chronopotentiometric studies of certain biologically important compounds at tubular graphite electrode

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Title:Chronopotentiometric studies of certain biologically important compounds at tubular graphite electrode
Creators:
Parkash, Ram
Gupta, Hari Om
Dutt, Jatinder
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 56, 9, pp. 1833-1837

Abstract

The chronopotentiometric studies of certain phenothiazines in hydrodynamic systems at a solution flow-through tubular graphite electrode were carried out in sulfuric acid of different concentrations. A well-defined single wave (involving 2 electrons) in 0.1M H<sub>2</sub>SO<sub>4</sub> and two waves (involving 1 electron each) in 2.0M H<sub>2</sub>SO<sub>4</sub> were observed. Phenothiazines are oxidized trough the formation of a monocation radical by the elimination of one electron from the lone pair of N-atom. The monocation radical is stable in sulfuric acid of a moderate concentration and is unstable in neutral or less acidic solutions. The cation radical undergoes instantaneous hydrolysis yielding sulfoxide, thus presenting an overall two-electron oxidation of the phenothiazine derivatives. The suitability of the chronopotentiometric technique for their determination was established.

Title:Chronopotentiometric studies of certain biologically important compounds at tubular graphite electrode
Creators:
Parkash, Ram
Gupta, Hari Om
Dutt, Jatinder
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:56
Number:9
Page Range:pp. 1833-1837
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19911833UNSPECIFIED
ID Code:5108
Item Type:Article
Deposited On:22 Feb 2010 11:30
Last Modified:22 Feb 2010 10:31

Citation

Parkash, Ram; Gupta, Hari Om; Dutt, Jatinder (1991) Chronopotentiometric studies of certain biologically important compounds at tubular graphite electrode. Collection of Czechoslovak Chemical Communications, 56 (9). pp. 1833-1837. ISSN 0010-0765

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