Determination of 266 pesticide residues in apple juice by matrix solid-phase dispersion and gas chromatography-mass selective detection.
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.
Chu
Xiao-Gang
XG
School of Food Science & Technology, Southern Yangtze University, Wuxi, Jiangsu 214036, PR China.
Hu
Xiao-Zhong
XZ
Yao
Hui-Yuan
HY
D001628:Beverages / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D027845:Malus / Q000737:chemistry*; D010573:Pesticide Residues / Q000032:analysis*; D012680:Sensitivity and Specificity
D010573:Pesticide Residues