| 固相萃取-气相色谱法检测三七中有机磷农药残留 |
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| 引用本文： | 谭福能,;何媛媛.固相萃取-气相色谱法检测三七中有机磷农药残留[J].文山师范高等专科学校学报,2014(6):1-3. |
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| 作者姓名： | 谭福能 ;何媛媛 |
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| 作者单位： | [1]文山学院化学与工程学院,云南文山663000; [2]文山市农业环境保护监测站,云南文山663000 |
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| 基金项目： | 云南省科技厅应用基础研究青年项目“新型壳聚糖衍生物智能凝胶的制备技术研究”（2012FD058）. |
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| 摘 要： | 文章采用固相萃取—气相色谱的方法检测三七样品中的有机磷类农药残留。采用超声法提取，并用弗罗里硅土固相萃取柱净化，用氮磷检测器进行检测，最后用外标法定量。5种有机磷杀虫剂的回收率范围为73.66%～112.22%，相对标准偏差（RSD）范围为2.94%～4.31%，在5个三七样品中检出了乐果和敌敌畏，没有检测到甲胺磷、对硫磷、辛硫磷。该方法快速、准确，可用于三七中有机磷农药残留的分析。
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| 关 键 词： | 三七 固相萃取 气相色谱 有机磷农药残留 |
Detecting Organophosphorus Pesticides Residue in Panax Notoginseng with Solid Phase Extraction and Gas Chromatography |
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| Institution: | TAN Fu-neng, HE Yuan-yuan (1. College of Chemistry and Engineering, Wenshan University, Wenshan 663000, China; 2. Agricultural Environment Protection and Monitoring Station, Wenshan 663000, China) |
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| Abstract: | The paper detects organophosphorus pesticide residue in Panax notoginseng using solid-phase extraction and gas chromatography methods. Panax notoginseng samples are extracted with ultrasonic method, puriifed with Florida silica solid-phase extraction column, detected with nitrogen-phosphorus detector and quantiifed with external standard method. The recovery range of ifve kinds of organophosphorus pesticide is 73.66%~112.22%with relative standard deviation of 2. 94%~4.31%. Dimethoate and DDVP are detected, but methamidophos, parathion and phoxim are not detected in five samples. This method is fast and accurate and can be used in the analysis of organophosphorus pesticide residue in Panax notoginseng. |
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| Keywords: | Panax notoginseng solid-phase extraction gas chromatography organophosphorus pesticide residue |
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