Please use this identifier to cite or link to this item: https://doi.org/10.1002/1521-4109(200203)14:63.0.CO;2-O
Title: Differential pulse voltammetric determination of trace Os(IV) at a sol-gel-ceramic-carbon powder-9-phenyl-3-fluorone composite electrode in flow systems
Authors: Khoo, S.B. 
Ye, R.
Keywords: Differential pulse voltammetry
Flow system
Os(IV)
Phenylfluorone
Issue Date: 2002
Source: Khoo, S.B.,Ye, R. (2002). Differential pulse voltammetric determination of trace Os(IV) at a sol-gel-ceramic-carbon powder-9-phenyl-3-fluorone composite electrode in flow systems. Electroanalysis 14 (6) : 420-426. ScholarBank@NUS Repository. https://doi.org/10.1002/1521-4109(200203)14:63.0.CO;2-O
Abstract: A composite electrode containing sol-gel-ceramic/carbon-powder/chemical-modifier as components was fabricated. This electrode was electrochemically viable and stable under both still and flow conditions. When the chemical modifier used was phenylfluorone, the composite electrode was useful for the sensitive and selective determination of Os(IV) under continuous flow and flow injection regimes. For these two modes, the detection limits were found to be 2.4 × 10-9 M Os(IV) (S/N = 3) and 3.8 ng (500 μL injection of 3.98 × 10-8 M Os(IV), S/N = 3), respectively. Selected substances were investigated for possible interferences. The developed method was utilized for the determination of Os(IV) in various backgrounds.
Source Title: Electroanalysis
URI: http://scholarbank.nus.edu.sg/handle/10635/93587
ISSN: 10400397
DOI: 10.1002/1521-4109(200203)14:63.0.CO;2-O
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