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Comparison of two ultrasound‐enhanced microextractions combined with HPLC for determining acaricides in water
Author(s) -
Peng Bing,
Yang Xiaoling,
Zhang Jiaheng,
Du Fengpei,
Zhou Wenfeng,
Gao Haixiang,
Lu Runhua
Publication year - 2013
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.201300283
Subject(s) - chromatography , ionic liquid , solvent , extraction (chemistry) , chemistry , high performance liquid chromatography , disperser , sonication , acaricide , analytical chemistry (journal) , materials science , organic chemistry , composite material , catalysis
An ultrasound‐enhanced in situ solvent formation microextraction has been developed first time and compared with ultrasound‐enhanced ionic‐liquid‐assisted dispersive liquid–liquid microextraction for the HPLC analysis of acaricides in environmental water samples. A ionic liquid ([C 8 MIM][PF 6 ]) was used as the green extraction solvent through two pathways. The experimental parameters, such as the type and volume of both of the extraction solvent disperser solvent, ultrasonication time, and salt addition, were investigated and optimized. The analytical performance using the optimized conditions proved the feasibility of the developed methods for the quantitation of trace levels of acaricides by obtaining limits of detection that range from 0.54 to 3.68 μg/L. The in situ solvent formation microextraction method possesses more positive characteristics than the ionic‐liquid‐assisted dispersive liquid–liquid microextraction method (except for spirodiclofen determination) when comparing the validation parameters. Both methods were successfully applied to determining acaricides in real water samples.