Determination of Organochlorine and Pyrethroid Pesticides Residues in Zigyphussp by Accelerated Solvent Extraction
10.3969/j.issn.1005-5304.2014.01.023
- VernacularTitle:加速溶剂萃取法测定大枣中有机氯及拟除虫菊酯类农药残留量
- Author:
Xiaohui HUANG
;
Yan LIU
;
Jian ZHANG
- Publication Type:Journal Article
- Keywords:
Zigyphussp;
gas chromatography;
organochlorine pesticides;
pyrethroid pesticides
- From:
Chinese Journal of Information on Traditional Chinese Medicine
2014;(1):74-78
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a gas chromatography method for the determination of 50 organochlorine and pyrethroid pesticides residues in Zigyphussp. Methods The organochlorine and pyrethroid pesticides were extracted from Zigyphussp with solvents of acetonitrile (1%acetic acid) by accelerated solvent extraction (ASE) for 5 min at 100℃. Then the extracts were cleaned up by alumina neutral-florisil column and eluted by mixed solvents of ethyl acetate and hexane (15∶85, V/V). The extract was separated by HP-5 and DB1701 capillary dual-column and detected by electron-capture detector. Results The average recoveries and RSD ranged from 71.4% to 110.9%and 1.2% to 14.1% respectively, at three spiked mixed organochlorine and pyrethroid levels. Conclusion The method has good separation and repeatability, and can be used in determination of organochlorine and pyrethroid pesticide residues in Zigyphussp.
