超声辅助分散液液微萃取-高效液相色谱法快速测定水样中的6种农药

引用本文: 滕瑞菊, 王欢, 王雪梅, 苏加强, 冯丽娟, 卢小泉. 超声辅助分散液液微萃取-高效液相色谱法快速测定水样中的6种农药[J]. 分析化学, 2017, 45(2): 275-281. doi: 10.11895/j.issn.0253-3820.160564 shu

Citation: TENG Rui-Ju, WANG Huan, WANG Xue-Mei, SU Jia-Qiang, FENG Li-Juan, LU Xiao-Quan. Rapid Determination of Six Pesticides in Water Samples Using Ultrasound-assisted Dispersive Liquid-Liquid Microextraction Coupled with High Performance Liquid Chromatography[J]. Chinese Journal of Analytical Chemistry, 2017, 45(2): 275-281. doi: 10.11895/j.issn.0253-3820.160564 shu

超声辅助分散液液微萃取-高效液相色谱法快速测定水样中的6种农药

1.
西北师范大学化学化工学院, 兰州 730070;
2.
甘肃省生物电化学与环境分析重点实验室, 兰州 730070;
3.
兰州工业研究院, 兰州 730050
基金项目:
本文系国家自然科学基金（No.21467028）、甘肃省“陇原青年创新人才扶持计划”资助

摘要: 为实现小体积环境水样中不同农药的准确、快速、高灵敏测定，通过研究萃取剂、分散剂的种类、体积、盐浓度及超声时间对萃取效率的影响，结合分散液液微萃取与超声萃取技术，并与高效液相色谱联用，建立了快速测定环境水样中的吡虫啉、水胺硫磷、辛硫磷、毒死蜱、哒螨灵和阿维菌素6种农药的方法。在优化的萃取条件下，检测6种农药的线性范围为10~600 μg/L，检出限（S/N=3）为0.8~3.1 μg/L，相对标准偏差为4.7%~11.3%，富集倍数可达到58~187倍。本方法具有良好的线性、精密度和回收率，并具有较好的实用性。

关键词:

English

Rapid Determination of Six Pesticides in Water Samples Using Ultrasound-assisted Dispersive Liquid-Liquid Microextraction Coupled with High Performance Liquid Chromatography

1.
College of Chemistry and Chemical Engineering, Northwest Normal University;
2.
Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province;
3.
Lanzhou Institute Technology, Lanzhou 730070, China
Received Date: 23 July 2016
Revised Date: 24 October 2016
Fund Project:
This work was supported by the National Natural Science Foundation of China (No. 21467028), the "Longyuan Young Creative Talents Support Program" of Gansu Province, China.

Abstract: A novel method for accurate, fast and sensitive detection of pesticides such as imidacloprid, isocarbophos, phoxim, dursban, imidacloprid, pyridaben and avermectin in environmental water samples has been developed by using ultrasound-assisted dispersive liquid-liquid microextraction (UA-DLLME) coupled with high performance liquid chromatography with ultraviolet detection (HPLC-UV). The UA-DLLME parameters such as types/volumes of extraction/dispersion solvents, ultrasonic time, ionic strength and extraction time were investigated. Under the optimized extraction conditions, the linearity for the detection of six pesticides in the concentration range of 10-600 μg/L was obtained with limits of detections (LODs) of 0.8-3.1 μg/L and relative standard deviations (RSDs) of 4.7%-11.3%. UA-DLLME method exhibited strong enrichment ability for the six pesticides, and the enrichment factor (EFs) were ranged from 58 to 187. This method had perfect linearity, precision and recovery results, and showed obvious advantages and practicality comparing the previously reported methods.

Key words:

Dispersive liquid-liquid microextraction
/ High performance liquid chromatography
/ Pesticides
/ Water samples

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沈阳化工大学材料科学与工程学院沈阳 110142

超声辅助分散液液微萃取-高效液相色谱法快速测定水样中的6种农药

English

Rapid Determination of Six Pesticides in Water Samples Using Ultrasound-assisted Dispersive Liquid-Liquid Microextraction Coupled with High Performance Liquid Chromatography

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

超声辅助分散液液微萃取-高效液相色谱法快速测定水样中的6种农药

English

Rapid Determination of Six Pesticides in Water Samples Using Ultrasound-assisted Dispersive Liquid-Liquid Microextraction Coupled with High Performance Liquid Chromatography

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

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