Separation of chlorinated hydrocarbons and organophosphorus,pyrethroid pesticides by silicagel fractionation chromatogra

Abstract： A silicagel fractionation procedure for environmental sample extracts, which separates chlorinatedhydrocarbons(CHCs) and organophosphorus, pyrethroid pesticides into two groups for subsequent instrumentalanalysis, was developed in this study. This method was achieved by optimizing the fraction cut-off volume of elutionand different solvents. Using fully activated silica gel and cut-off CHCs collection after 10 mi 10% dichloromethane(DCM) in n-hexane passing through the column resulted in satisfactory separation of CHCs and organophosphorus,pyrethroid pesticides. This procedure had a higher reliability for CHCs than for organophosphorus, pyrethroidpesticides, because there is a relatively reliable recovery for CHCs. This approach is less expensive due to reducingsample pre-treatment time and solvent consumption. 作 者： WANG Li-gang    JIANG Xin    WANG Fang    BIAN Yong-rong    Stephan Forster    Dieter MARTENS   作者單位： WANG Li-gang,JIANG Xin,WANG Fang,BIAN Yong-rong(Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China)

Stephan Forster,Dieter MARTENS(Institute of Ecological Chemistry, National Research Center for Environment and Health, Neuherberg 85764, Germany) 

期 刊： 環境科學學報(英文版)  ISTICSCI   Journal： JOURNAL OF ENVIRONMENTAL SCIENCES  年，卷(期)： 2004, 16(2)  分類號： X132  Keywords： CHCs    organophosphorus pesticides    pyrethroid pesticides    silicagel fractionation