The Determination of Zinc, Cadmium, Lead and Copper in Precipitation by Computerized Differential Pulse Voltammetry

A method is described for the determination of metals in rainwater by means of differential pulse anodic stripping voltammetry. Organic interferants are removed by passing the sample over active carbon at pH 1 . A symmetrical, mercury-drop electrode flow through cell is mounted on a PAR 303 electrod...

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Veröffentlicht in:	International journal of environmental analytical chemistry 1985-01, Vol.19 (2), p.85-98
Hauptverfasser:	Lingerak, W. A., Wensveen-louter, A. M. v., Slanina, J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Analytical chemistry Chemistry determination Electrochemical methods Exact sciences and technology metals precipitation rainwater Stripping voltammetry
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Beschreibung
Zusammenfassung:	A method is described for the determination of metals in rainwater by means of differential pulse anodic stripping voltammetry. Organic interferants are removed by passing the sample over active carbon at pH 1 . A symmetrical, mercury-drop electrode flow through cell is mounted on a PAR 303 electrode stand. The polarography and the flow injection sample handling system are computer controlled. Results are obtained by means of a calibration graph, standard additions are not necessary. Results for Zn, Cd, Pb and Cu in rainwater are in agreement with results obtained by AAS.
ISSN:	0306-7319 1029-0397
DOI:	10.1080/03067318508077020