FAST ANALYSIS OF POLYBROMINATED DIPHENYL ETHERS IN EGGS USING SELECTIVE PRESSURIZED LIQUID EXTRACTION COUPLED WITH AUTOMATED ONLINE GPC-GC/MS
This article reported the applicability of online GPC-GC/MS for the determination of seven predominant polybrominated diphenyl ethers (BDE-28, BDE-47, BDE-99, BDE-100, BDE-153, BDE-154 and BDE-183) in eggs to effectively eliminate matrix interference. Method of selective pressurized liquid extraction (SPLE) using acid alumina as fat retainer was run for cleanup of the predominant PBDEs in eggs. It was selected for its advantages with simpler operation, a minimum of time spent on sample handing to get fat free extracts and the less volume of solvent consuming. After concentration, the extract was directly injected into online GPC-GC/MS operated in negative chemical ionization (NCI) mode and fast quantitated on a 15 m column. Recoveries of spiked samples were between 75.1％-102.0％ with RSDs (n=3) ranging from 3.69％-11.47％ when spiked at levels of 2 and 20 ng/g, dry mass. The limit of detection (LOD) varied from 0.25-0.34 ng/g, dry mass. The method proposed was proved to be rapid, efficient and reliable for the trace determination of PBDEs in eggs.
Liu Y P Li J G Zhao Y F Wu Y N
National Institute of Nutrition and Food Safety,Chinese Center for Disease Control and Prevention,Beijing 100050,China
国际会议
北京
英文
1-4
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）