Modified electrode voltammetric sensors for trace metals in environmental samples

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ID: 54131
2000
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Abstract
Nafion-modified mercury thin film electrodes have been investigated for the analysis of trace metals in environmental samples of waters and effluent by batch injection analysis with square wave anodic stripping voltammetry. The method, involving injection over the detector electrode of untreated samples of volume of the order of 50 microlitres has fast response, blocking and fouling of the electrode is minimum as shown by studies with surface-active components. Comparison is made between glassy carbon substrate electrodes and carbon fibre microelectrode array substrates, the latter leading to a small sensitivity enhancement. Application to analysis of river water and industrial effluent for labile zinc, cadmium, lead and copper ions is demonstrated in collected samples and after acid digestion.
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Authors M.A., Brett Christopher;A., Fungaro Denise;
Journal journal of the brazilian chemical society
Year 2000
DOI
DOI not found
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000300017
Keywords
chemistry microscopy Engineering (General). Civil engineering (General) Technology Electrical engineering. Electronics. Nuclear engineering Descriptive and experimental mechanics

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