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Title: Determination of trace amounts of mercury by pure carbon-paste and by chemically modified carbon-paste electrodes
Authors: Kannan, R.
Lakshminarayanan, V.
Rajagopalan, S.R.
Keywords: DPP
adsorptive stripping voltammetry
mercury determination
chemically modified carbon-paste electrode
hydroxylamine modified carbon-paste electrode
Issue Date: 1991
Publisher: Bhaba Atomic Research Centre
Citation: Proceedings of the national conference on modern analytical techniques, Bhaba Atomic Research Centre, Bombay, 1991, p202-204
Abstract: A differential pulse anodic stripping voltammetric method was developed for the determination of trace amounts of mercury in water samples using pure carbon-paste electrode. The method offered a sensitivity of 410 nA/ppm. In order to improve selectivity several' chemically modified C-paste electrodes were prepared and investigated. By this study it was found that at pH 10.5, in 0.1 M sodium acetate solution, the hydroxylamine modified carbon-paste electrode accumulated mercury non-electrochemically at ppm levels. Using this electrode, an adsorptive stripping voltammetric method, offering a sensitivity of 105 nA/ppm, was developed for mercury determination.
Description: Restricted Access.
Copyright: 1991 BARC, Mumbai
Appears in Collections:Research Papers (SCM)

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