Document Detail


Characterization of isomeric allylic diols resulting from chlorophyll phytyl side-chain photo- and autoxidation by electron ionization gas chromatography/mass spectrometry.
MedLine Citation:
PMID:  15685684     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The electron ionization (EI) mass spectral fragmentation of the trimethylsilyl derivatives of 3-methylidene-7,11,15-trimethylhexadecane-1,2-diol, Z- and E-3,7,11,15-tetramethylhexadec-3-ene-1,2-diols and Z- and E-3,7,11,15-tetramethylhexadec-2-ene-1,4-diols resulting from chlorophyll phytyl side-chain photo- and autoxidation was investigated. Different pathways (substantiated by deuterium labelling) were proposed in order to explain the main fragmentation observed. Then, some sufficiently specific fragment ions were selected and used to characterize these compounds in natural environmental samples.
Authors:
J-F Rontani; C Aubert
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Rapid communications in mass spectrometry : RCM     Volume:  19     ISSN:  0951-4198     ISO Abbreviation:  Rapid Commun. Mass Spectrom.     Publication Date:  2005  
Date Detail:
Created Date:  2005-02-17     Completed Date:  2005-05-16     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8802365     Medline TA:  Rapid Commun Mass Spectrom     Country:  England    
Other Details:
Languages:  eng     Pagination:  637-46     Citation Subset:  IM    
Affiliation:
Laboratoire de Microbiologie de Géochimie et d'Ecologie Marines UMR 6117, Centre d'Océanologie de Marseille, Campus de Luminy-case 901, 13288 Marseille, France. rontani@com.univ-mrs.fr
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MeSH Terms
Descriptor/Qualifier:
Chlorophyll / analysis*,  chemistry*,  radiation effects
Environmental Monitoring / methods
Gas Chromatography-Mass Spectrometry / methods*
Isomerism
Light
Oxidation-Reduction
Photochemistry / methods*
Spectrometry, Mass, Electrospray Ionization / methods*
Trimethylsilyl Compounds / analysis*,  chemistry*,  radiation effects
Chemical
Reg. No./Substance:
0/Trimethylsilyl Compounds; 1406-65-1/Chlorophyll

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


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