In situ voltammetric measurement of trace elements in lakes and oceans |
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| Authors: | M.-L. Tercier J. Buffle A. Zirino R.R. De Vitre |
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| Affiliation: | Département de Chimie Minérale, Analytique et Appliquée, Université de Genève, 1211 Genève 4 Switzerland;Marine Environment Branch, Code 522, Nasal Ocean Systems Center, San Diego, CA 92152 U.S.A.;Département de Chimie Minérale, Analytique et Appliquée, Université de Genève, 1211 Genève 4 Switzerland |
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| Abstract: | A submersible probe with a flow-through cell allowing in situ voltammetric measurements by means of either a mercury film or a mercury drop electrode has been developed. The various possibilities of voltammetric measurements in the presence of dissolved oxygen have been reviewed and tested. Optimum conditions for the determination of trace metals in oxygenated waters have been found. In situ determinations of Mn(II) in anoxic lake water and of trace metals (Cu2+, Pb2+, Cd2+, Zn2+) in oxygen-saturated sea water are reported. |
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| Keywords: | Trace elements Waters Sea Water Lake Water |
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