Document Detail


Liquid chromatography/electrospray ionisation sequential mass spectrometric identification of the main chlortoluron by-products during water disinfection using chlorine
MedLine Citation:
PMID:  10825244     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
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.
Authors:
Zambonin; Losito; Palmisano
Related Documents :
17075924 - Capillary electrochromatography-mass spectrometry of cationic surfactants.
18494024 - Rapid classification of perfumes by extractive electrospray ionization mass spectrometr...
20102764 - Evaluation of steviol and its glycosides in stevia rebaudiana leaves and commercial swe...
16783694 - Detection of saponins in extracts from the rhizomes of paris species and prepared chine...
19081124 - Analysis of veterinary antibiotic residues in swine wastewater and environmental water ...
21383474 - Real-time breath gas analysis for pharmacokinetics: monitoring exhaled breath by on-lin...
Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  Rapid communications in mass spectrometry : RCM     Volume:  14     ISSN:  1097-0231     ISO Abbreviation:  Rapid Commun. Mass Spectrom.     Publication Date:  2000  
Date Detail:
Created Date:  2000-06-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8802365     Medline TA:  Rapid Commun Mass Spectrom     Country:  ENGLAND    
Other Details:
Languages:  Eng     Pagination:  824-8     Citation Subset:  -    
Affiliation:
Dipartimento di Chimica, Universita degli Studi della Basilicata, Via N. Sauro 85, 85100-Potenza, Italy.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  252Cf plasma desorption mass spectrometric study of interactions of steroid glycosides with amino ac...
Next Document:  Application of matrix-assisted laser desorption/ionization to on-line aerosol time-of-flight mass sp...