| Mass spectrometric identification and gas-liquid chromatographic determination of 2-chloroethyl esters of fatty acids in spices and foods. | |
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MedLine Citation:
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PMID: 500529 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The 2-chloroethyl esters of 5 fatty acids have been identified in spice and food samples by gas-liquid chromatography-mass spectrometry (GLC/MS). Twenty-four spice samples were analyzed for the 2-chloroethyl esters of fatty acids by AOAC official multiple residues pesticide procedure using GLC with microcoulometric detection. The esters of capric, lauric, myristic, palmitic, and linoleic acids have been identified at levels up to 1400 ppm. 2-Chloroethyl linoleate was the most abundant ester in all samples. Several foods analyzed by the same procedures showed levels of 2-chloroethyl linoleate as high as 35 ppm. Recoveries from fortified samples ranged from 84 to 98% for the various esters. A method using an acid-catalyzed esterification reaction was developed to rapidly determine the fatty acid content of these spices. GLC analysis with microcoulometric detection was used. Recoveries from fortified samples ranged from 92 to 110%. After 2 spice samples found to be free of 2-chloroethyl esters were fumigated with ethylene oxide, the level of 2-chloroethyl linoleate reached 77 ppm. All levels of 2-chloroethyl esters were confirmed by GLC/MS. |
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Authors:
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D L Heikes; K R Griffitt |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal - Association of Official Analytical Chemists Volume: 62 ISSN: 0004-5756 ISO Abbreviation: J Assoc Off Anal Chem Publication Date: 1979 Jul |
Date Detail:
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Created Date: 1980-01-28 Completed Date: 1980-01-28 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7505559 Medline TA: J Assoc Off Anal Chem Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 786-91 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Chromatography, Gas Condiments / analysis* Esters / analysis Ethylene Oxide Fatty Acids / analysis* Food Contamination / analysis* Fumigation Gas Chromatography-Mass Spectrometry |
| Chemical | |
Reg. No./Substance:
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0/Esters; 0/Fatty Acids; 75-21-8/Ethylene Oxide |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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