| LLE-GC-MS法测定水中27种有机农药 |
| |
| 引用本文： | 武法伟,董淑娟,刘梦,孟焕梅,袁鹏辉,陈明晓,董军,高帅.LLE-GC-MS法测定水中27种有机农药[J].环境监控与预警,2017,9(3):35-40. |
| |
| 作者姓名： | 武法伟 董淑娟 刘梦 孟焕梅 袁鹏辉 陈明晓 董军 高帅 |
| |
| 作者单位： | 1. 山东省地矿工程勘察院,山东 济南,250014;2. 中国石油大学(北京),重质油国家重点实验室,北京 102249 |
| |
| 基金项目： | 山东省地质勘查项目（SSDZS-2015-GTT01） |
| |
| 摘 要： | 建立了同时测定水中27种有机农药的LLE-GC-MS法。该法前处理前需调节水样pH值2,不加甲醇作为改性剂,以1:1(V/V)正己烷-石油醚为萃取溶剂进行液液萃取,GC-MS法进行检测。方法在各目标化合物质量浓度0.010~0.500 mg/L范围内线性良好,相关系数R2均0.995,检出限为0.021~0.250μg/L,加标回收率为73.6%~113.6%,相对标准偏差RSD为4.0%~14.1%,适用于水中27种有机农药的检测。
|
| 关 键 词： | 液液萃取 气相色谱质谱法 水中 有机农药 |
| 收稿时间： | 2017/1/16 0:00:00 |
| 修稿时间： | 2017/3/10 0:00:00 |
Study on The 27 Kinds of Organic Pesticides in Water by LLE GC MS |
| |
| WU Fa-wei,DONG Shu-juan,LIU Meng,MENG Huan-mei,YUAN Peng-hui,CHEN Ming-xiao,DONG Jun,GAO Shuai.Study on The 27 Kinds of Organic Pesticides in Water by LLE GC MS[J].Environmental Monitoring and Forewarning,2017,9(3):35-40. |
| |
| Authors: | WU Fa-wei DONG Shu-juan LIU Meng MENG Huan-mei YUAN Peng-hui CHEN Ming-xiao DONG Jun GAO Shuai |
| |
| Abstract: | A new method was established for simultaneous determination of 27 kinds of pesticide residues in water by using liquid-liquid extraction (LLE).Firstly, we need to adjust the pH value of the water less than two(pH<2), hexane and petroleum ether mixture (V/V =1:1) was used as extraction solvent to extract 27 kinds of pesticide residues, and then determinationed by gas chromatography mass spectrometry (GC-MS).In this method, the linear relationship of each target compound is good in the range of 0.010~0.500 mg/L, the correlation coefficients were greater than 0.995, and the detection limits ranged from 0.021 to 0.250 μg/L, the average recovery was among 73.6% to 113.6% with the relative standard deviation varied between 4.0% and 14.1%.The method is applicable to detection of pesticide residues in water. |
| |
| Keywords: | Liquid liquid extraction (LLE) GC MS Water Organic pesticides |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《环境监控与预警》浏览原始摘要信息 |
| 点击此处可从《环境监控与预警》下载免费的PDF全文 |
|
