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Temperature-controlled ionic liquid dispersive liquid-phase microextraction combined with HPLC with ultraviolet detector for the determination of fungicides.
- Source :
-
Journal of Separation Science . Dec2012, Vol. 35 Issue 24, p3569-3574. 6p. - Publication Year :
- 2012
-
Abstract
- Present study described a simple, environmental benign, easy to operate, and determination method for fungicides including thiram, metalaxyl, diethofencarb, myclobutanil, and tebuconazole. The method is based on temperature-controlled ionic liquid dispersive liquid phase microextraction coupled to HPLC with ultraviolet detector. In the enrichment procedure, ionic liquid 1-octyl-3-methylimidazolium hexafluorophosphate [C8MIM][PF6] was used as the extraction solvent. Variable affecting parameters such as the volume of [C8MIM][PF6], temperature, extraction time, centrifuging time, and salting-out effect have been optimized in detail. Under the optimal conditions, this method has been found to have good linear relationship in the concentration range of 1.0-100 μg/L and excellent detection sensitivity with LODs ( S/ N = 3) in the range of 0.32-0.79 μg/L. Precisions of proposed method were in the range of 3.7-5.9% for intraday and 7.8-11.0% for interday ( RSDs, n = 6). The proposed method was used for the analysis of real water samples and good spiked recoveries at two different spiked levels were achieved in the range of 84.6-102%. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16159306
- Volume :
- 35
- Issue :
- 24
- Database :
- Academic Search Index
- Journal :
- Journal of Separation Science
- Publication Type :
- Academic Journal
- Accession number :
- 84086848
- Full Text :
- https://doi.org/10.1002/jssc.201200553