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环境科学学报:英文版 |
| Separation of chlorinated hydrocarbons and organophosphorus, pyrethroid pesticides by silicagel fractionation chromatography and their simultaneous determination by GC-MS环境科学学报:英文版论文 |
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【题名】:Separation of chlorinated hydrocarbons and organophosphorus, pyrethroid pesticides by silicagel fractionation chromatography and their simultaneous determination by GC-MS环境科学学报:英文版论文(Separation of chlorinated hydrocarbons and organophosphorus, pyrethroid pesticides by silicagel fractionation chromatography and their simultaneous determination by GC-MSHuanJingKeXueXueBao:YingWenBanLunWen) 【关键词】:碳氢化合物 杀虫剂 有机磷农药 合成除虫菊酯 分离技术 【keywords】:TanQingHuaHeWu ShaChongJi YouJiLinNongYao HeChengChuChongJuZuo FenLiJiShu 【作者】:WANGLi-gang,JIANGXin,WANGFang,BIANYong-rong,StephanForster,DieterMartens, 【来源】: 知识词典 【期刊名称】:环境科学学报:英文版(HuanJingKeXueXueBao:YingWenBan) 【国际标准刊号】:1001-0742 【国内统一刊号】:11-2629/X 【作者单位】:[1]InstituteofSoilScience,ChineseAcademyofSciences,Nanjing210008,China. [2]InstituteofEcologicalChemistry,NationalResearchCenterforEnvironmentandHealth,Neuherberg85764,Germany([1]InstituteofSoilScience,ChineseAcademyofSciences,Nanjing210008,China. [2]InstituteofEcologicalChemistry,NationalResearchCenterforEnvironmentandHealth,Neuherberg85764,Germany) 【分类号】:X132 【页码】:-268-271 【出版年】:2004.2 A silicagel fractionation procedure for environmental sample extracts, which separates chlorinated hydrocarbons(CHCs) and organophosphorus, pyrethroid pesticides into two groups for subsequent instrumental analysis, was developed in this study. This method was achieved by optimizing the fraction cut-off volume of elution and different solvents. Using fully activated silica gel and cut-off CHCs collection after 10ml 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, pyrethroid pesticides, because there is a relatively reliable recovery for CHCs. This approach is less expensive due to reducing sample pre-treatment time and solvent consumption.
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