title: Determination of 266 pesticide residues in apple juice by matrix solid-phase dispersion and gas chromatography-mass selective detection.
abstract: A macro matrix solid-phase dispersion (MSPD) method was developed to extract 266 pesticides from apple juice samples prior to gas chromatography-mass selective detection (GC-MSD) determination. A 10 g samples was mixed with 20 g diatomaceous earth. The mixture was transferred into a glass column. Pesticide residues were leached with a 160 mL hexane-dichloromethane (1:1) at 5 mL/min. Two hundred and sixty-six pesticides were divided into three groups and detected by GC-MSD under selective ion monitoring. The proposed method takes advantage of both liquid-liquid extraction and conventional MSPD methods. Application was illustrated by the analysis of 236 apple juice samples produced in Shaanxi province China mainland this year.
authors.affiliation: School of Food Science & Technology, Southern Yangtze University, Wuxi, Jiangsu 214036, PR China.
authors.forename: Xiao-Gang
authors.initials: XG
authors.lastname: Chu
authors.forename: Xiao-Zhong
authors.initials: XZ
authors.lastname: Hu
authors.forename: Hui-Yuan
authors.initials: HY
authors.lastname: Yao
mesh_terms: D001628:Beverages / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D027845:Malus / Q000737:chemistry*; D010573:Pesticide Residues / Q000032:analysis*; D012680:Sensitivity and Specificity
chemical_list: D010573:Pesticide Residues