A simple method for the determination of organochlorine pollutants and the enantiomers in oil seeds based on matrix solid-phase dispersion. (1st March 2016)

• Record Type: Journal Article
• Authors: Zhan, Jing; Li, Jindong; Liu, Donghui; Liu, Chang; Yang, Genggeng; Zhou, Zhiqiang; Wang, Peng
• Is Part Of: Food chemistry. Volume 194(2016)
• Page Start: 319
• Page End: 324
• Publication Date: 2016-03-01
• Subjects: α-HCH, β-HCH, γ-HCH, δ-HCH (PubChem CID: 727) -- Hexachlorobenzene (PubChem CID: 8370) -- Trans-chlordane (PubChem CID: 91746602) -- Cis-chlordane (PubChem CID: 1550472) -- o, p′-DDT (PubChem CID: 13089) -- p, p′-DDT (PubChem CID: 3036) -- o, p′-DDD (PubChem CID: 4211) -- p, p′-DDD (PubChem CID: 6294) -- o, p′-DDE (PubChem CID: 246598) -- p, p′-DDE (PubChem CID: 3035); Matrix solid-phase dispersion -- Peanuts -- Soybeans -- Organochlorine pollutants; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664
• DOI: 10.1016/j.foodchem.2015.07.067
• Languages: English
• ISSNs: 0308-8146

Abstract

Graphical abstract: Highlights: Organochlorine pollutants in complex oily matrix were effectively determined. This MSPD method could almost clean up lipids without cumbersome steps. A chiral residue analysis method was developed. Chiral organochlorine pollutants were determined on an enantiomeric level. Abstract: 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, α-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 68.9–103.3% 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.