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| 超声辅助溶剂萃取-GC/MS测定环境水样中的毒死蜱 | |
| 引用本文： | 唐薇,关卓,黄玉明,唐翔宇.超声辅助溶剂萃取-GC/MS测定环境水样中的毒死蜱[J].西南师范大学学报(自然科学版),2012,37(5):6-10. |
| 作者姓名： | 唐薇 关卓 黄玉明 唐翔宇 |
| 作者单位： | 1. 西南大学化学化工学院,三峡库区生态环境教育部重点实验室,重庆400715;中国科学院水利部成都山地灾害与环境研究所,成都610041 2. 中国科学院水利部成都山地灾害与环境研究所,成都,610041 3. 西南大学化学化工学院,三峡库区生态环境教育部重点实验室 |
| 基金项目： | 国家自然科学基金，"十二五"国家科技支撑计划项目课题专题，中国科学院"百人计划"择优支持项目 |
| 摘 要： | 本实验将超声辅助溶剂萃取与气-质联用(GC/MS)相结合,建立了一种简单、快捷的适用于环境水样的毒死蜱分析方法.实验系统考察了超声时间、超声功率、石油醚体积、萃取次数和样品溶液体积等因素对萃取效率的影响,进而对萃取与色谱条件进行了最优化.结果表明:经优化的分析方法的线性范围为0.1～50μ g/L,检出限(S/N=3)达0.019μg/L,3个加标浓度水平下相对标准偏差(RSD)为1.85％～4.67％,实际样品加标回收率在85.6％～103.7％之间. |
| 关 键 词： | 毒死蜱 超声辅助溶剂萃取 环境水样 GC/MS |
Determination of Chlorpyrifos in Environmental Water Samples by Ultrasound-Assisted Solvent Extraction-GC/MS |
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| TANG Wei , GUAN Zhuo , HUANG Yu-ming , TANG Xiang-yu.Determination of Chlorpyrifos in Environmental Water Samples by Ultrasound-Assisted Solvent Extraction-GC/MS[J].Journal of Southwest China Normal University(Natural Science),2012,37(5):6-10. | |
| Authors: | TANG Wei GUAN Zhuo HUANG Yu-ming TANG Xiang-yu |
| Institution: | 1.School of Chemistry and Chemical Engineering,the Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environments,Southwest University,Ministry of Education,Chongqing 400715,China;2.Institute of Mountain Hazards and Environment,Chinese Academy of Sciences,Chengdu 610041,China |
| Abstract: | Ultrasound-assisted solvent extraction was used in combination with gas chromatography-mass spectrometry(GC/MS) to develop a simple and rapid method for detecting chlorpyrifos in environmental water samples.Several conditions that potentially affect the extraction efficiency,including ultrasonic time,ultrasonic power,volume of petroleum ether,extraction times and the sample volume,were investigated.The extraction procedure and GC/MS conditions/settings were optimized.The experimental results using the optimized method showed that the linear range was 0.1~50 μg·L-1 with a detection limit(S/N=3) of 0.019 μg·L-1,a relative standard deviation(RSD) of 1.85%~4.67% at three spiked levels of chlopyrifos and a recovery of 85.6%~103.7% of the chlorpyrifos added to three types of water samples. |
| Keywords: | chlorpyrifos ultrasonound-assisted solvent extraction environmental water sample GC/MS |
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