| Liquid chromatography/electrospray ionisation sequential mass spectrometric identification of the main chlortoluron by-products during water disinfection using chlorine | |
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MedLine Citation:
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PMID: 10825244 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The main degradation by-products of the herbicide chlortoluron formed during water disinfection with HOCl/ClO(-) have been separated and identified by liquid chromatography/electrospray ionisation sequential mass spectrometry (LC/ESI-MS(n)). Chlorination and hydroxylation reactions seem to occur exclusively on the aromatic ring of chlortoluron, leading to by-products which show characteristic fragmentation patterns. Indeed, chlortoluron-like ESI spectra were always observed for chlorinated by-products, showing only a fragment at m/z 72. In contrast, hydroxylated and chloro/hydroxylated by-products gave a much more complex fragmentation pattern that could be elucidated by MS(n) (n = 1-4) experiments. A mechanistic scheme rationalising the observed fragmentation pattern is proposed and discussed. Copyright 2000 John Wiley & Sons, Ltd. |
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Authors:
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Zambonin; Losito; Palmisano |
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Publication Detail:
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Type: JOURNAL ARTICLE |
Journal Detail:
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Title: Rapid communications in mass spectrometry : RCM Volume: 14 ISSN: 1097-0231 ISO Abbreviation: Rapid Commun. Mass Spectrom. Publication Date: 2000 |
Date Detail:
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Created Date: 2000-06-30 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8802365 Medline TA: Rapid Commun Mass Spectrom Country: ENGLAND |
Other Details:
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Languages: Eng Pagination: 824-8 Citation Subset: - |
Affiliation:
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Dipartimento di Chimica, Universita degli Studi della Basilicata, Via N. Sauro 85, 85100-Potenza, Italy. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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