Detection of pyrrolizidine alkaloids using flow analysis with both acidic potassium permanganate and tris(2,2’-bipyridyl)ruthenium(II) chemiluminescence

Gorman, Bree, Barnett, Neil and Bos, Richard 2005, Detection of pyrrolizidine alkaloids using flow analysis with both acidic potassium permanganate and tris(2,2’-bipyridyl)ruthenium(II) chemiluminescence, Analytica chimica acta, vol. 541, no. 1-2, pp. 119-124.

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Title Detection of pyrrolizidine alkaloids using flow analysis with both acidic potassium permanganate and tris(2,2’-bipyridyl)ruthenium(II) chemiluminescence
Author(s) Gorman, Bree
Barnett, Neil
Bos, Richard
Journal name Analytica chimica acta
Volume number 541
Issue number 1-2
Start page 119
End page 124
Publisher Elsevier BV
Place of publication Amsterdam, The Netherlands
Publication date 2005-06
ISSN 0003-2670
1873-4324
Keyword(s) pyrrolizidine alkaloids
chemiluminescence
immobilised tris(2,2′-bipyridyl)ruthenium(II)
sequential injection
Summary For the first time, analytically useful chemiluminescence was elicited from the reactions of the pyrrolizidine alkaloids. Heliotrine, retronecine, supinine, monocrotaline and echinatine N-oxide yielded chemiluminescence upon reaction with tris(2,2′-bipyridyl)ruthenium(II) whilst lasiocarpine, its N-oxide and supinine elicited light upon reaction with acidic potassium permanganate. Detection limits for heliotrine were 1.25 × 10−7 M and 9 × 10−9 M for tris(2,2′-bipyridyl)ruthenium(III) perchlorate with flow injection analysis (FIA) and the silica-immobilised reagent (4-[4-(dichloromethylsilanyl)-butyl]-4′-methyl-2,2′-bipyridine)bis(2,2′-bipyridyl)ruthenium(II) with sequential injection analysis (SIA), respectively. Lasiocarpine was detectable at 1.4 × 10−7 M using acidic potassium permanganate with FIA. Additionally, the silica-immobilised reagent was optimised with respect to the oxidant (ammonium ceric nitrate) concentration and the aspiration times which afforded a detection limit for codeine of 5 × 10−10 M using SIA.
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
Copyright notice ©2004, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30003186

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