期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1218, 期 37, 页码 6271-6277出版社
ELSEVIER
DOI: 10.1016/j.chroma.2011.07.016
关键词
Vinylimidazolium ionic liquid; Molecularly imprinted polymer; Chlorsulfuron; On-line solid-phase extraction; High performance liquid chromatography
资金
- National Natural Science Foundation of China [30872126, 21075089]
- Ministry of Science and Technology of China [2009BADB9B03]
- National Natural Science Foundation of Tianjin [10JCZDJC18300]
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.
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