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Chemiluminescence from the oxidation of urea and ammonia with hypobromite and N-bromosuccinimide

Francis, Paul, Barnett, Neil, Lewis, Simon and Lim, Kieran 2004, Chemiluminescence from the oxidation of urea and ammonia with hypobromite and N-bromosuccinimide, Talanta, vol. 64, no. 2, pp. 283-289.

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Title Chemiluminescence from the oxidation of urea and ammonia with hypobromite and N-bromosuccinimide
Formatted title Chemiluminescence from the oxidation of urea and ammonia with hypobromite and N-bromosuccinimide
Author(s) Francis, Paul
Barnett, Neil
Lewis, Simon
Lim, Kieran
Journal name Talanta
Volume number 64
Issue number 2
Start page 283
End page 289
Publisher Elsevier B.V.
Place of publication Amsterdam, Netherlands
Publication date 2004-10-08
ISSN 0039-9140
1873-3573
Keyword(s) N-bromosuccinimide
chemiluminescence
hypobromite
Summary The spectral distribution for the chemiluminescent oxidation of ammonia with hypobromite is significantly different to that for the oxidation of ammonia with N-bromosuccinimide. Therefore, in contrast to the assumptions of several authors, the action of N-bromosuccinimide is not solely derived from the in situ formation of hypobromite. Neither the oxidation of urea with hypobromite nor the oxidation of urea with N-bromosuccinimide involves an initial hydrolysis of urea to ammonia in the alkaline solution. However, these two reactions lead to a common emitter. The addition of xanthene dyes, such as dichlorofluorescein, enhance the chemiluminescence intensity by energy transfer to the efficient fluorophore, but reaction between the sensitiser and hypobromite can result in a significant increase in the background signal. A list of potential interferences has been compiled; particular attention was paid to guanidino compounds, as the chemiluminescence accompanying the oxidation of this functional group has not been previously discussed.
Notes Available online 19 May 2004.
Language eng
Field of Research 030101 Analytical Spectrometry
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:30002786

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