| 摘要: |
| 采用固相萃取（SPE）技术，结合气相色谱/质谱（GC-MS）选择离子检测法（SIM）对水样中26种有机氯农药（OCPs）进行提取、净化、浓缩前处理，优选了固相萃取小柱填料及萃取、净化条件，优化了GC-MS的工作参数，建立了地下水中26种有机氯农药的SPE-GC-MS分析方法。针对不同的组分，本法加标回收率为76.422%~112.512%， 相对标准偏差为4.905%~15.524%，检出限为0.014~0.089μg/L。该方法操作简单，消耗费用低，分析速度快，具有较高的灵敏度和回收率。 |
| 关键词: 固相萃取 色谱/质谱联用 选择离子检测 有机氯农药 |
| DOI： |
| 分类号:X832；O657.7+1 |
| 文献标识码:B |
| 基金项目:山东省地质勘查基金资助项目（SSDZS-2015-GTT01） |
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| A Study of 26 Organochlorine Pesticides in Groundwater by SPE-GC-MS |
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YUAN Peng-hui， CHEN Xiao-ming， DONG Jun， FAN Xiao-jing1,2
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1. Shandong Geological Engineering Investigation Institute， Jinan， Shandong 250014， China;2. State Key Laboratory of Heavy Oil Processing， China University of Petroleum， Beijing 102249， China
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| Abstract: |
| A method for the analysis 26 organochlorine pesticides (OPCs) in groundwater was established using solid phase extraction (SPE) and gas chromatography mass spectrometry (GC-MS). These OPCs was extracted， purified and pre concentrated， and the column packing materials， extraction and purification conditions were optimized.The working parameters of GC-MS were investigated. The experimental results showed that the spiked recoveries were between 76.836% and 112.512% with the relative standard deviations of 4.905%~15.524%， while the detection limits were in the range of 0.014~0.089μg/L. The established method is simple， rapid， sensitive and reliable. |
| Key words: Solid phase extraction GC- MS Selective ion monitoring Organochlorine pesticides |
