固相萃取和液液萃取测定水中百菌清和环氧七氯  

To Detect Trace Chlorothalonil and Heptachlor Epoxide in Water with Solid Phase Extraction and Liquid Liquid Extraction

作　　者：王喜琴 

机构地区：[1]宁夏环境监测中心站,银川750011

出　　处：《价值工程》2012年第35期318-319,共2页Value Engineering

摘　　要：采用固相萃取与液液萃取测定水中的环氧七氯和百菌清,用带有电子捕获器检测器的气相色谱仪进行测定。百菌清液液萃取的回收率在57%-87%之间,固相萃取的回收率在87%-110%之间。环氧七氯液液萃取的回收率在50%-90%之间,固相萃取的回收率在83%-110%之间。固相萃取法的回收率更高,且方法检出限更低,完全满足《地表水环境质量标准》(GB 3838-2002)的要求。To detect trace chlorothalonil and heptachlor epoxide in water with Solid phase extraction and Liquid liquid extraction, analysis by gas chromatograph with ECD. When using liquid liquid extraction, chlorothalonil recovery rate was 57%-87% and Heptachlor Epoxide was 50%-90%.When using Solid phase extraction, chlorothalonil recovery rate was 87%~110%, and Heptachlor Epoxide was 83% -110%. Recovery rate of solid phase extraction is higher, and the detection limit of the method are lower, To fully meet the requirements of Sulface Water Environment Quality Standard（ GB 3838-2002）.

关 键 词：百菌清 环氧七氯 固相萃取 液液萃取 

分 类 号：X52[环境科学与工程—环境工程]