Biochemical Research Methods
; Chemistry, Analytical
研究领域[WOS]:
Biochemistry & Molecular Biology
; Chemistry
摘要:
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. (C) 2004 Elsevier B.V. All rights reserved.
英文摘要:
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. (C) 2004 Elsevier B.V. All rights reserved.
1.State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China 2.So Yangtze Univ, Sch Food Sci & Technol, Wuxi 214036, Jiangsu, Peoples R China 3.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China 4.Hubei Entry Exit Inspect & Quarantine Bur, Ctr Tech, Wuhan 430022, Hubei, Peoples R China
Recommended Citation:
Xiao-Gang Chu; Xiao-Zhong Hu; Hui-Yuan Yao.Determination of 266 pesticide residues in apple juice by matrix solid-phase dispersion and gas chromatography-mass selective detection,JOURNAL OF CHROMATOGRAPHY A,2005,1063(1-2):201-210
