Use of a Silver Ion Selective Electrode for the Determination of Stability Constants of Metal Complexes

The potential response of a sulfide-based silver ion selective electrode was examined in various metal buffer solutions. In every system tested, the potential response of the electrode was rapid and the electrode potential correctly reflected the free silver ion concentration in the solution. The st...

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Bibliographic Details
Published in:Analytical Sciences 1985, Vol.1(5), pp.409-412
Main Authors: YUCHI, Akio, WADA, Hiroko, NAKAGAWA, Genkichi
Format: Article
Language:English
Subjects:
Chemistry
Coordination compounds
Exact sciences and technology
Inorganic chemistry and origins of life
ligand buffer
metal buffer
Preparations and properties
Silver ion selective electrode
stability constant
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Summary:The potential response of a sulfide-based silver ion selective electrode was examined in various metal buffer solutions. In every system tested, the potential response of the electrode was rapid and the electrode potential correctly reflected the free silver ion concentration in the solution. The stability constants of silver complexes with seven ligands were determined. This electrode was used also to measure the free cyanide ion concentration in the solutions containing silver, cyanide and a second metal ion. The stability constants of zinc and cadmium cyano complexes were obtained. The behavior of the silver ion selective electrode is discussed in contrast to that of the mixed sulfide membrane electrodes.
ISSN:0910-6340
1348-2246
DOI:10.2116/analsci.1.409