PMID- 19449547 OWN - NLM STAT- MEDLINE DCOM- 20150514 LR - 20161018 IS - 1000-8713 (Print) IS - 1000-8713 (Linking) VI - 27 IP - 1 DP - 2009 Jan TI - [Determination of bifenthrin residue in plant-based foods using gas chromatography-mass spectrometry]. PG - 82-5 AB - A method was established for the determination of bifenthrin residue in 8 plant-based foods using gas chromatography-mass spectrometry (GC-MS). The grain was extracted by acetonitrile and cleaned up with gel permeation chromatography (GPC) combined with a Florisil solid-phase extraction (SPE) cartridge, while the vegetables and fruits were extracted by ethyl acetate and cleaned up only with a Florisil SPE cartridge. Most of the lipids in the extract for the grain were eliminated by GPC, prior to SPE cleanup. The cleaned extract was analyzed by GC-MS with electron impact (EI) source in selective ion monitoring (SIM) mode. The detection limit was 5 microg/kg (S/N = 10). There was a good linearity within the range of 0.005 -0.5 mg/L with the correlation coefficient of 0.999 9. The recoveries were between 74% - 99% with the relative standard derivations of less than 13% at the spiking levels of 0.005, 0.04 and 0.1 mg/kg. FAU - Dong, Zhenlin AU - Dong Z AD - Liaoning Enter-Exit Inspection and Quarantine Bureau, Dalian 116610, China. dzl1974@sina.com FAU - Yang, Chunguang AU - Yang C FAU - Xue, Dafang AU - Xue D FAU - Zhang, Huayi AU - Zhang H FAU - Pang, Yanhua AU - Pang Y LA - chi PT - English Abstract PT - Journal Article PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (Pesticide Residues) RN - 0 (Pyrethrins) RN - 6B66JED0KN (bifenthrin) SB - IM MH - Fruit/*chemistry MH - *Gas Chromatography-Mass Spectrometry MH - Limit of Detection MH - Pesticide Residues/*analysis MH - Pyrethrins/*analysis MH - Vegetables/*chemistry EDAT- 2009/05/20 09:00 MHDA- 2015/05/15 06:00 CRDT- 2009/05/20 09:00 PHST- 2009/05/20 09:00 [entrez] PHST- 2009/05/20 09:00 [pubmed] PHST- 2015/05/15 06:00 [medline] PST - ppublish SO - Se Pu. 2009 Jan;27(1):82-5.