超声波萃取-气相色谱/质谱法测定土壤中的七氯及氯丹  

Ultrasonic extraction-Gas chromatography/mass spectrometry method for determination of heptachlor and chlordane in soil

作　　者：吴香姣 冯丽萍 

机构地区：[1]衡阳市环境监测站,衡阳421001

出　　处：《分析仪器》2016年第2期30-33,共4页Analytical Instrumentation

摘　　要：以超声波萃取法将土壤中的七氯、氯丹用正己烷/二氯甲烷（1＋1）萃取、经Florisil柱净化浓缩定容后,用气相色谱/质谱联用仪（GC-MS）进行测定。七氯、顺、反-氯丹方法检出限分别为14.7μg/kg、3.93μg/kg和5.28μg/kg,加标回收率在76.4%-114%之间,精密度（RSD）〈15%。The heptachlor and chlordane are extracted by hexane/dichloromethane（1＋1）.After purifying and concentrating through the Florisil SPE,they are determined by gas chromatography/mass spectrometry.The detection limits of heptachlor,cis-chlordane and trans-chlordane are 14.7ug/kg,3.93ug/kg and 5.28ug/kg respectively.Standard recovery rate is between 76.4% and 114%.The relative standard deviation is below 15%.

关 键 词：土壤七氯 氯丹超声萃取气相色谱/质谱法 

分 类 号：X833[环境科学与工程—环境工程] O657.63[理学—分析化学]