摘要
介绍了ASE提取、硫酸磺化和GPC净化土壤中有机氯农药的试验方法,并通过对比试验、条件试验等对ASE提取土壤中有机氯农药的效果进行了验证。结果表明,温度在80~110℃,压力在1200~1800psi均适用于提取土壤中有机氯农药,20种有机氯农药除了异狄氏剂回收率偏高外,其它19种全部在50%~150%之间,相对标准偏差均在20%以内。ASE提取、GPC净化,20种农药样品加标平均回收率50%~117%;相对标准偏差3%~28%;2种替代物回收率84%~102%,相对标准偏差6%~7%。
ASE is a extraction method uses elevated temperature (100EC) and pressure (1500~2000psi) to achieve analyte recoveries equivalent to those from Soxhlet extraction, using less solvent and taking significantly less time than the Soxhlet procedure. The paper introduces a procedure using ASE extracting organochlorine pesticides(OCPs) from soil and Gel - Permeation or sulfuric acid cleanup. As a results, in any temperature and pressure between 80 ~ 11℃ and 1200~1800psi the recoveries of 20 kinds of CLP OCPs except Endrin are 50%~150%, the relative standard deviations (RSDs) are all within 20%. Adding 20 OCPs in soil matrix, the average recoveries are 50%~117% ;the RSDs are 3%~28%, the two SS recoveries are 84%~102%, their RSDs are 6%~7%.
出处
《中国环境监测》
CAS
CSCD
北大核心
2006年第5期19-22,共4页
Environmental Monitoring in China
基金
高技术研究发展计划(863计划)基金项目(2002AA641010-02)
关键词
ASE
有机氯农药
土壤
ASE
Organochlorine pesticides(OCPs)
Soil