Journal
FOOD CHEMISTRY
Volume 194, Issue -, Pages 319-324Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2015.07.067
Keywords
Matrix solid-phase dispersion; Peanuts; Soybeans; Organochlorine pollutants
Funding
- Foundation for the Author of National Excellent Doctoral Dissertation of PR China
- National Natural Science Foundation of China [11210064, 21277171, 21307155]
- New-Star of Science and Technology by Beijing Metropolis
- Program for New Century Excellent Talents in University
- Program for Changjiang Scholars and Innovative Research Team in University
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A simple, rapid and effective method was developed based on matrix solid-phase dispersion (MSPD) for the determination of organochlorine pollutants including sixteen organochlorine pesticides (OCPs) and seven polychlorinated biphenyls (PCBs) in oil seeds (peanuts and soybeans). Among the organochlorine pollutants selected, alpha-HCH, heptachlor, o,p'-DDT, o,p'-DDD, trans-chlordane and cis-chlordane were chiral and their enantiomers were determined by GC-ECD with a chiral column. The MSPD procedure was optimized focusing on the type and amount of dispersion sorbent, co-column sorbent and eluting solvent. Under the optimized condition, good recoveries were obtained in the range of 68.9-1033% with relative standard deviations (RSD) values below 16.1% in all cases. LODs and LOQs were in range of 0.1-2.0 ng g(-1) and 0.4-6.7 ng g(-1) respectively. In summary, the method set up was qualified to be used for the determination of the pollutants and the enantiomers in oil seeds. (C) 2015 Elsevier Ltd. All rights reserved.
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