ISSN:
1040-0397
Schlagwort(e):
Organogermanium
;
Voltammetry
;
Polarography
;
Reduction mechanism
;
Chemistry
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
This article describes the electrochemical behavior of β-carboxyethylgermanium sesquioxide (Ge-132) on mercury electrodes in weakly acidic solution. The Ge-132 exhibits two Well-defined cathodic waves in linear-sweep voltammetry and polarography. The first wave in a voltammiogram of Ge-132 is a simple two-electron reduction and exhibits the property of adsorption. From chronoamperometry, the reaction in die second wave, however, proves to be an ECE mechanism and ultimately yields metallic germanium and propionic acid. The determination of small amounts of Ge-132 is investigated by differential pulse polarography in an acetate buffer. The detection limits of Ge-132 are below 0.2 μmol dm-3.
Zusätzliches Material:
9 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/elan.1140060912
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