Electrochemical flow-through detector for the determination of cystine and related compounds |
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| Authors: | R Eggli R Asper |
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| Institution: | Institute of Inorganic Chemistry, University of Zürich, CH-8001 ZürichSwitzerland;University Hospital of Zürich, CH-8091 ZürichSwitzerland |
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| Abstract: | An electrochemical double cell for the detection of cystine in aqueous liquid streams is described. A column electrode of amalgamated silver powder is used to reduce cystine quantitatively to cysteine, which is detected amperometrically at a mercury electrode. The double cell is applied to the detection of cystine, cysteine and penicillamine in high-pressure liquid chromatography and to the selective determination of cystine and cysteine by flow-injection analysis. |
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