Preparation and evaluation of molecularly imprinted ionic liquids polymer as sorbent for on-line solid-phase extraction of chlorsulfuron in environmental water samples

被引：92

作者：

Guo, Lu ^{[1
]}

Deng, Qiliang ^{[1
]}

Fang, Guozhen ^{[1
]}

Gao, Wei ^{[1
]}

Shuo, Wang ^{[1
]}

机构：

[1] Tianjin Univ Sci & Technol, Tianjin Key Lab Food Nutr & Safety, Minist Educ China, Key Lab Food Nutr & Safety, Tianjin 300457, Peoples R China

来源：

JOURNAL OF CHROMATOGRAPHY A | 2011年 / 1218卷 / 37期

基金：

中国国家自然科学基金;

关键词：

Vinylimidazolium ionic liquid; Molecularly imprinted polymer; Chlorsulfuron; On-line solid-phase extraction; High performance liquid chromatography; SULFONYLUREA HERBICIDES; SILICA; GEL;

D O I：

10.1016/j.chroma.2011.07.016

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

In this report, vinylimidazolium ionic liquid as a functional monomer for preparation of chlorsulfuron (CS) imprinted polymers were first studied. The imprinted materials showed high selectivity for CS, and fast kinetics so that adsorption equilibrium was achieved within 5 min. These materials have been further employed to detect trace CS from water samples by online preconcentration coupled with HPLC. The sorbent offered good linearity (0.005-30 mu g L-1 r(2) > 0.99) for on-line solid-phase extraction of trace chlorsulfuron. Under the optimal experimental conditions, the recovery for chlorsulfuron was in the range of 81.0-110.1% for the water samples, with RSDs ranging from 1.2 to 7.6%. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：6271 / 6277

页数：7

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