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Electrochemical behavior and determination of β‐carboxyethylgermanium sesquioxide
Author(s) -
Hasebe Kiyoshi,
Hikima Satoshi,
Motonari Masayuki,
Yamagishi Akihiko,
Kakizaki Teiji
Publication year - 1994
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.1140060912
Subject(s) - polarography , chronoamperometry , sesquioxide , electrochemistry , germanium , dropping mercury electrode , cyclic voltammetry , chemistry , analytical chemistry (journal) , cathodic protection , inorganic chemistry , electrode , cathodic stripping voltammetry , materials science , chromatography , organic chemistry , silicon
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 .