Determining Ten Synthetic Pyrethroids in Lettuce and Ground Meat by Using Ion-Trap Mass Spectrometry and Electron-Capture Gas Chromatography
Conventional extraction procedures with acetonitrile were compared with supercritical fluid extraction (SFE) with CO2 for determining 10 pyrethroids in fortified lettuce and meat samples. Because SFE utilized a minimal cleanup procedure, nonvolatiles may accumulate on the capillary column in both th...
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Published in | Journal of agricultural and food chemistry Vol. 45; no. 1; pp. 180 - 184 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Washington, DC
American Chemical Society
01.01.1997
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Subjects | |
Online Access | Get full text |
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Summary: | Conventional extraction procedures with acetonitrile were compared with supercritical fluid extraction (SFE) with CO2 for determining 10 pyrethroids in fortified lettuce and meat samples. Because SFE utilized a minimal cleanup procedure, nonvolatiles may accumulate on the capillary column in both the gas chromatography-ion trap mass spectrometry (GC-ITMS) and electron capture (EC) detection modes shortening the lifetime of the columns after multiple injections. The GC-ITMS method proved satisfactory for analysis of lettuce whereas EC-GC proved more suitable for residue analysis of meat samples. Improvements in multiresidue methods for monitoring of synthetic pyrethroids in raw agricultural commodities should aid in registration and reregistration activities. Keywords: SFE; insecticides; meat; fat; ion-trap |
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Bibliography: | Q03 1997062832 ark:/67375/TPS-CL35TS1J-H istex:7406932F837FA4331B90B07B7278FF681C167DC7 Abstract published in Advance ACS Abstracts, November 15, 1996. |
ISSN: | 0021-8561 1520-5118 |
DOI: | 10.1021/jf960121b |