Determination of trace metals by anodic-stripping voltammetry with a new kind of mercury electrode: The long-lasting sessile-drop electrode.
A new kind of semi-stationary mercury drop electrode is described, which can be used for the determination of trace metals in natural waters by differential-pulse anodic-stripping voltammetry. Results are reported for the determination of zinc in potassium chloride and in samples of sea-water. The reproducibility of the electrode and of the results obtained with it for zinc at the 10(-8)M level are very satisfactory.
Andruzzi
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Istituto di Chimica, Facoltà di Ingegneria, Università degli Studi di Roma and Centro di Elettrochimica e Chimica-Fisica delle Interfasi, C.N.R., Via del Castro Laurenziano, 7-00161 Roma, Italy.
Trazza
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