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Pulsed flow chemistry : a new approach to solution handling for flow analysis coupled with chemiluminescence detection

Lewis, Simon W., Francis, Paul, Lim, Kieran, Jenkins, Graeme E. and Wang, Xue D. 2000, Pulsed flow chemistry : a new approach to solution handling for flow analysis coupled with chemiluminescence detection, Analyst, vol. 125, no. 10, pp. 1869-1874.

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Title Pulsed flow chemistry : a new approach to solution handling for flow analysis coupled with chemiluminescence detection
Author(s) Lewis, Simon W.
Francis, PaulORCID iD for Francis, Paul orcid.org/0000-0003-4165-6922
Lim, KieranORCID iD for Lim, Kieran orcid.org/0000-0001-5355-8030
Jenkins, Graeme E.
Wang, Xue D.
Journal name Analyst
Volume number 125
Issue number 10
Start page 1869
End page 1874
Total pages 6
Publisher Royal Society of Chemistry
Place of publication London, Eng.
Publication date 2000
ISSN 0003-2654
Summary Novel instrumentation for flow analysis, coupled with chemiluminescence detection, and based on pulsed flow chemistry is described. The pulsed flow chemistry manifold allows for rapid and efficient mixing of chemiluminescent reagent with sample immediately in front of the detector, thus giving high precision (less than 1 % RSD) and detectability, particularly for rapid, short-lived emissions. The instrument is also characterised by a compact size, high sampling frequency (120 to 300 samples per hour) and low reagent consumption (less than 500 ml per cycle). Other flow analysis modes (eg. flow injection, continuous flow and stopped flow) are available by simply altering software settings. The suitability of the system was shown using chemiluminescence reactions of analytical significance, namely the oxidation of luminol with hexacyanoferrate(III) in the presence of 4-hydroxy-3-methoxybenzeneacetic acid (homovanillic acid), and the reduction of acidic potassium permanganate by morphine in the presence of polyphosphates. The latter reaction was used to determine morphine in aqueous process samples and the results obtained with the pulsed flow instrument displayed good agreement (mean difference of 1.8%) with a previously validated flow injection analysis method.
Language eng
Field of Research 030103 Flow Analysis
0301 Analytical Chemistry
0399 Other Chemical Sciences
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2000, The Royal Society of Chemistry
Persistent URL http://hdl.handle.net/10536/DRO/DU:30076134

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