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IJC-A Vol.51A(05) [May 2012] >


Title: In situ bismuth film modified carbon fiber microelectrode for nanomolar detection of cadmium and lead
Authors: Anandhakumar, S
Mathiyarasu, J
Phani, K L N
Keywords: Bismuth
Microelectrodes
Heavy metals
Cadmium
Lead
Square wave anodic stripping voltammetry
Issue Date: May-2012
Publisher: NISCAIR-CSIR, India
Abstract: In situ bismuth film modified carbon fiber microelectrode is reported for sensitive detection of Cd(II) and Pb(II) in 0.1 M acetate buffer solution of pH 4.5. As compared to the unmodified electrode, in situ bismuth modification improves the detection limit at nanomolar level for individual as well as simultaneous detection of Cd(II) and Pb(II). Electroanalysis carried out using square wave anodic stripping voltammetry shows linear response over the 50-500 nM range. The minimum detection limits are not affected for the individual and simultaneous metal detection. Using the standard addition method, cadmium and lead have been detected in tap water samples successfully.
Page(s): 699-703
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0975(Online); 0376-4710(Print)
Source:IJC-A Vol.51A(05) [May 2012]

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