Document Detail


Comparison of analytical strategies for the chromatographic and mass spectrometric measurement of brominated flame retardants: 1. Polybrominated diphenylethers.
MedLine Citation:
PMID:  16959125     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The chromatographic and mass spectrometric (MS) behaviors of 49 polybrominated diphenylether (PBDE) homologues toward various techniques is investigated. Special attention is paid to chromatographic separation, ionization processes, and signal acquisition modes. Different liquid chromatographic (LC) separation systems and gas chromatographic (GC) temperature program parameters are studied. For LC-MS experiments, the ionization efficiencies of electrospray, atmospheric pressure chemical ionization, and atmospheric pressure photoionization (APPI) are evaluated. For GC-MS experiments, negative chemical ionization with ammonia as reagent gas as well as negative and positive electron impact (EI) ionization are studied. Thus, fragmentation pathways of PBDEs are investigated, with the main objective being to determine the sensitivity/specificity balance of each tested technique with respect to their potential respective application (parent compound focusing, metabolite identification, and screening of analogue compounds). Finally, performances of the different tested techniques are compared and evaluated in terms of detection limits on standard solutions for each homologue group. In terms of ionization, EI remains the best compromise between sensitivity and specificity with possible complementary applications in MS-MS and high-resolution MS. Nevertheless, APPI appears to be a promising alternative.
Authors:
Ronan Cariou; Jean-Philippe Antignac; Laurent Debrauwer; Daniel Maume; Fabrice Monteau; Daniel Zalko; Bruno le Bizec; François Andre
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of chromatographic science     Volume:  44     ISSN:  0021-9665     ISO Abbreviation:  J Chromatogr Sci     Publication Date:  2006 Sep 
Date Detail:
Created Date:  2006-09-08     Completed Date:  2007-09-05     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0173225     Medline TA:  J Chromatogr Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  489-97     Citation Subset:  IM    
Affiliation:
Laboratoire d'Etude des Résidus et Contaminants dans les Aliments, Ecole Nationale Vétérinaire de Nantes, Unité Sous Contrat INRA (Institut National de la Recherche Agronomique), BP 50707, 44307 Nantes cedex 3, France.
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MeSH Terms
Descriptor/Qualifier:
Chromatography, Liquid / methods*
Flame Retardants / analysis*
Gas Chromatography-Mass Spectrometry
Halogenated Diphenyl Ethers
Mass Spectrometry / methods*
Phenyl Ethers / analysis*
Polybrominated Biphenyls / analysis*
Chemical
Reg. No./Substance:
0/Flame Retardants; 0/Halogenated Diphenyl Ethers; 0/Phenyl Ethers; 0/Polybrominated Biphenyls; 32534-81-9/pentabromodiphenyl ether

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


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