Determination of Dicofol and Pyrethroid Pesticide Residues in Vegetables and Fruits by Gas Chromatography
- VernacularTitle:蔬菜和水果中三氯杀螨醇和拟除虫菊酯类农药的气相色谱测定法
- Author:
Hong GUO
;
Chuang LIU
;
Yuzhu YANG
- Publication Type:Journal Article
- Keywords:
Chromatography,gas;
Dicofol;
Pyrethroid pesticides;
Solid phase extraction;
Vegetable;
Fruit
- From:
Journal of Environment and Health
1989;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a method to determine dicofol and eight pyrethroid pesticides residues in vegetables and fruits by gas chromatography.Methods The crushed samples were extracted with organic solvent,then the extract was analyzed by DM-17 capillary column gas chromatography after being purified by PestiCarb-NH2 cartridge and silica cartridge solid phase extraction.Results The detection curve covered the linear range of 0.10-2.0 ?g/ml .The minimum detection limit was 0.011-0.090 ?g/kg.The rates of recovery were 85.4%-105%.The variable coefficient(RSD) was under 7.0%.Conclusion This method has the advantages of less disturb, simple and high accuracy, and it can be applicable to the routine analysis of dicofol and pyrethroid pesticides residues.
