- 相關(guān)推薦
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(huán)境科學(xué)學(xué)報(bào)(英文版) ISTICSCI Journal： JOURNAL OF ENVIRONMENTAL SCIENCES 年，卷(期)： 2004, 16(2) 分類(lèi)號(hào)： X132 Keywords： CHCs organophosphorus pesticides pyrethroid pesticides silicagel fractionation