Record Display for the EPA National Library Catalog
RECORD NUMBER: 3 OF 19Main Title | Anodic Stripping Voltammetry at a Mercury Film Electrode: Baseline Concentrations of Cadmium, Lead, and Copper in Selected Natural Waters. | |||||||||||
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Author | Poldoski, J. E. ; Glass, G. E. ; | |||||||||||
CORP Author | Environmental Research Lab.-Duluth, MN. | |||||||||||
Year Published | 1978 | |||||||||||
Report Number | EPA/600/J-78/088; | |||||||||||
Stock Number | PB-292 531 | |||||||||||
Additional Subjects | Water analysis ; Polarographic analysis ; Chemical analysis ; Water pollution ; Cadmium ; Absorption spectra ; Atomic spectroscopy ; Trace elements ; Lead(Metal) ; Copper ; Concentration(Composition) ; Sampling ; Voltammetry ; Water pollution detection ; Baseline measurements ; Reprints | |||||||||||
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Collation | 12p | |||||||||||
Abstract | A simple, rapid, and inexpensive anodic stripping voltammetric method with a mercury thin film electrode is reported for the establishment of baseline concentrations of cadmium, lead, and copper in natural waters. The procedure for routine surface preparation of wax-impregnated graphite mercury film electrodes requires about 30 min. Concentrations in the 0.006-6 microgram/l range are determined by linear d.c. voltage sweeps; the total time for a plating and stripping cycle is 6 min or less. The need for pressure-digesting samples for copper determinations is demonstrated. The a.s.v. results correlate well with corresponding analyses performed by graphite-furnace atomic absorption spectrometry. |