A sensitive procedure for the rapid determination of arsenic(III) by flow injection analysis and chemiluminescence detection

Satienperakul, Sakchai, Cardwell, Terence, Kolev, Spas, Lenehan, Claire and Barnett, Neil 2005, A sensitive procedure for the rapid determination of arsenic(III) by flow injection analysis and chemiluminescence detection, Analytica chimica acta, vol. 554, no. 1-2, pp. 25-30.

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Title A sensitive procedure for the rapid determination of arsenic(III) by flow injection analysis and chemiluminescence detection
Author(s) Satienperakul, Sakchai
Cardwell, Terence
Kolev, Spas
Lenehan, Claire
Barnett, Neil
Journal name Analytica chimica acta
Volume number 554
Issue number 1-2
Start page 25
End page 30
Publisher Elsevier BV
Place of publication Amsterdam, Netherlands
Publication date 2005-12-04
ISSN 0003-2670
1873-4324
Keyword(s) flow injection
chemiluminescence
arsenic
acidic potassium permanganate
Summary A novel chemiluminescence flow injection procedure for the determination of As(III) in aqueous samples is described. The method involves injection of As(III) samples into a 1% (m/v) sodium hexametaphosphate in 0.02 M H2SO4 carrier stream, which then merges at a Y-piece with a reagent stream consisting of potassium permanganate (5.0 × 10−5 M) made up in the acidic sodium hexametaphosphate carrier solution. The chemiluminescence intensity of the resulting reaction mixture was measured at a photomultiplier tube operated at a voltage of 0.93 kV. Under optimized conditions, the method is characterised by a linear range from 0.5 to 5.0 μg l−1, a detection limit of 0.3 μg l−1 and a sampling frequency of 150 h−1. The effects of common anionic and cationic interferences were investigated, and it was found that the only ions to cause serious interference were those which react with potassium permanganate, namely sulphide, iodide and ferrous.
Notes Available online 5 October 2005.
Language eng
Field of Research 030103 Flow Analysis
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2005, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30008870

Document type: Journal Article
Collection: School of Biological and Chemical Sciences
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