期刊
TALANTA
卷 82, 期 4, 页码 1371-1377出版社
ELSEVIER
DOI: 10.1016/j.talanta.2010.07.002
关键词
Microwave assisted ionic liquid microextraction (MAILE); Phenylurea and triazine herbicides; Milk samples
资金
- Quality Inspection community service Foundation, PR China [200810474]
The determination of phenylurea and triazine herbicides in milk based on microwave assisted ionic liquid microextraction (MAILME) coupled with high-performance liquid chromatographic separation was described. The experimental parameters of the MAILE, including type and amount of ionic liquid, microwave extraction power, extraction time and salt concentration in sample, were evaluated by a univariate method and orthogonal screening. When 60 mu L of [C6MIM][PF6] was used as extraction solvent the target compounds can be isolated from the 4 mL of milk. The MAILME is quick (7 min) and simple. The detection limits for isoproturon, monolinuron, linuron, propazine, prometryne, terbutryn and trietazine are 0.46, 0.78, 1.00, 1.21, 1.96, 0.84 and 1.28 mu g L-1, respectively. The proposed method was applied to the analysis of milk samples and the recoveries of the analytes ranged from 88.4 to 117.9% and relative standard deviations were lower than 7.43%. (C) 2010 Elsevier B.V. All rights reserved.
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