Kontinuierliche katalytisch-kinetische bestimmung von silber und sulfid im p.p.m.-bereich unter verwendung einer durchflusszelle |
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| Authors: | H. Ludwig H. Weisz T. Lenz |
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| Affiliation: | Lehrusthl für Analytische Chemie, Chemisches Laboratorium, Universiät Freiburg i.Br. Bundesrepublik Deutschland |
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| Abstract: | The determination of silver and sulphide in the p.p.m. range by a catalytickinetic flow method is described. A flow-through cell is used as the mixing and reaction vessel as well as for measurement. The determination of silver is based on its catalytic action on the oxidation of sulphanilic acid by potassium per-sulphate in the presence of 2,2'-bipyridine. Sulphide retards the catalytic activity of silver and so can be determined indirectly. Interfering ions are studied. |
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