title: Gas chromatography with flame photometric detection of 31 organophosphorus pesticide residues in Alpinia oxyphylla dried fruits.
abstract: A simple, rapid and effective gas chromatography-flame photometric detection method was established for simultaneous multi-component determination of 31 organophosphorus pesticides (OPPs) residues in Alpinia oxyphylla, which is widely consumed as a traditional medicine and food in China. Sample preparation was completed in a single step without any clean-up procedure. All pesticides expressed good linear relationships between 0.004 and 1.0 μg/mL with correlation coefficients higher than 0.9973. The method gave satisfactory recoveries for most pesticides. The limits of detection varied from 1 to 10 ng/mL, and the limits of quantification (LOQs) were between 4 and 30 ng/mL. The proposed method was successfully applied to 55 commercial samples purchased from five different areas. Five pesticide residues were detected in four (7.27%) samples. The positive samples were confirmed by gas chromatography with tandem mass spectrometry (GC-MS/MS).
authors.affiliation: Institute of Medicinal Plant Development, Chinese Academy of Medicinal Science & Peking Union Medical College, Beijing 100193, China; Hainan Branch Institute of Medicinal Plant Development, Chinese Academy of Medicinal Sciences & Peking Union Medical College, Wanning 571533, China.
authors.forename: Xiangsheng
authors.initials: X
authors.lastname: Zhao
authors.affiliation: Institute of Medicinal Plant Development, Chinese Academy of Medicinal Science & Peking Union Medical College, Beijing 100193, China.
authors.forename: Weijun
authors.initials: W
authors.lastname: Kong
authors.affiliation: Institute of Medicinal Plant Development, Chinese Academy of Medicinal Science & Peking Union Medical College, Beijing 100193, China; Hainan Branch Institute of Medicinal Plant Development, Chinese Academy of Medicinal Sciences & Peking Union Medical College, Wanning 571533, China.
authors.forename: Jianhe
authors.initials: J
authors.lastname: Wei
authors.affiliation: Institute of Medicinal Plant Development, Chinese Academy of Medicinal Science & Peking Union Medical College, Beijing 100193, China; Hainan Branch Institute of Medicinal Plant Development, Chinese Academy of Medicinal Sciences & Peking Union Medical College, Wanning 571533, China. Electronic address: yangmeihua15@hotmail.com.
authors.forename: Meihua
authors.initials: M
authors.lastname: Yang
mesh_terms: D032429:Alpinia / Q000737:chemistry*; D002681:China; D002849:Chromatography, Gas / Q000379:methods*; D057141:Food, Preserved / Q000032:analysis*; D005638:Fruit / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D009943:Organophosphorus Compounds / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis*; D010783:Photometry / Q000379:methods; D015203:Reproducibility of Results; D053719:Tandem Mass Spectrometry / Q000379:methods
chemical_list: D009943:Organophosphorus Compounds; D010573:Pesticide Residues
keywords: Alpinia oxyphylla; Gas chromatography–flame photometric detection; Gas chromatography–tandem mass spectrometry; Multi-component determination; Organophosphorus pesticide