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| 复杂基质韭菜中有机磷农药残留检测技术研究 | |
| 引用本文： | 赵延胜,董英,张峰,储晓刚.复杂基质韭菜中有机磷农药残留检测技术研究[J].现代科学仪器,2009(3):52-54. |
| 作者姓名： | 赵延胜 董英 张峰 储晓刚 |
| 作者单位： | 1. 江苏大学,镇江212013;中国检验检疫科学研究院,北京100123 2. 江苏大学,镇江,212013 3. 中国检验检疫科学研究院,北京,100123 |
| 基金项目： | 科技部征重大支撑项目 |
| 摘 要： | 韭菜样品采用乙酸乙酯振荡提取,Envi-Carb柱和Florisil柱串联固相萃取净化的方式：Envi-Carb拄有效地去除色素成分,Florisil柱去除较多的干扰杂质。采用正已烷和乙酸乙酯的二元溶剂作为洗脱溶剂,优化后得到其体积比为9：1,洗脱体积为5mL。11种有机磷农药化合物利用气相色谱质谱联用技术进行测定,扫描方式为选择离子扫描,得到11种有机磷农药的平均加标回收率：甲拌磷为77.5%、甲基对硫磷为118.7%、杀螟硫磷为123.1%,其余化合物为90%～114%;相对标准偏差为0.6%～12.1%。 |
| 关 键 词： | 复杂基质 韭菜 有机磷农药 固相萃取 |
Determination of Orgnaophosphorus Residues in Complex Matrix Chinese Chives by SPE-GC/MS |
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| Zhao Yan-sheng,Dong Ying,Zhang Feng,Chu Xiaogang.Determination of Orgnaophosphorus Residues in Complex Matrix Chinese Chives by SPE-GC/MS[J].Modern Scientific Instruments,2009(3):52-54. | |
| Authors: | Zhao Yan-sheng Dong Ying Zhang Feng Chu Xiaogang |
| Affiliation: | Zhao Yansheng, Dong Ying, Zhang Feng, Chu Xiaogang (1.Jiangsu University, Zhenjiang 212013, China;2. Chinese Academy of Inspection and Quarantine,Beijing,100123, China) |
| Abstract: | The preparation of samples included extraction by ethyl acetate and cleaning by Envi-Carb and Florisil solid phase extraction （SPE） tube. The Envi-Carb SPE tube was used to remove the pigments efficiently, while the Florisil SPE tube cleaned up the most interference materials. The wash solution was n-hexane and ethyl acetate, whose volume ratio is 9：1 and the wash volume is 5mL. 11 orgnaophosphorus pesticides were determined by gas chromatography-mass spectrometric detector with selected ions mode （GC-MS/SIM）. The average recoveries of all analytes were between 90% and 114%, except the recoveries of Phorate, Methyl-Parathion and Fenitrothion were 77.5%, 118.7% and 123.1%. The relative standard deviations （RSD）were 0.6% - 12.1 %. |
| Keywords: | Complex matrix Chinese chives Orgnaophosphorus SPE |
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