Temperature-controlled ionic liquid-dispersive liquid-phase microextraction for preconcentration of chlorotoluron, diethofencarb and chlorbenzuron in water samples.
作者： Qingxiang Zhou , Xiaoguo Zhang , Guohong Xie , Junping Xiao
关键词:
摘要: This article describes a new, rapid and sensitive method for the determination of chlorotoluron, diethofencarb chlorbenzuron from water samples with temperature-controlled ionic liquid-dispersive liquid-phase microextraction. In preconcentration procedure, liquid 1-hexyl-3-methylimidazolium hexafluorophosphate [C(6)MIM] [PF(6)] was employed as extraction solvent. The parameters, such volume [PF(6)], sample pH, time, centrifuging temperature salting-out effect, were investigated in detail. Under optimal conditions, it has been found that three analytes had excellent LODs (S/N=3) range 0.04-0.43 microg/L. RSDs (n=6) 1.3-4.7%. proposed evaluated lake water, tap melted snow samples. experimental results indicated prospect would be widely used future.
cabdirect.org
sci-hub.se 参考文章(33)
Darinka Štajnbaher, Lucija Zupančič-Kralj, Multiresidue method for determination of 90 pesticides in fresh fruits and vegetables using solid-phase extraction and gas chromatography-mass spectrometry. Journal of Chromatography A. ,vol. 1015, pp. 185- 198 ,(2003) , 10.1016/S0021-9673(03)01211-1
Nazir Fattahi, Yaghoub Assadi, Mohammad Reza Milani Hosseini, Elham Zeini Jahromi, Determination of chlorophenols in water samples using simultaneous dispersive liquid-liquid microextraction and derivatization followed by gas chromatography-electron-capture detection Journal of Chromatography A. ,vol. 1157, pp. 23- 29 ,(2007) , 10.1016/J.CHROMA.2007.04.062
Michael A. Jeannot, Frederick F. Cantwell, Mass Transfer Characteristics of Solvent Extraction into a Single Drop at the Tip of a Syringe Needle Analytical Chemistry. ,vol. 69, pp. 235- 239 ,(1997) , 10.1021/AC960814R
C. Baggiani, P. Baravalle, G. Giraudi, C. Tozzi, Molecularly imprinted solid-phase extraction method for the high-performance liquid chromatographic analysis of fungicide pyrimethanil in wine. Journal of Chromatography A. ,vol. 1141, pp. 158- 164 ,(2007) , 10.1016/J.CHROMA.2006.12.016
Catherine L. Arthur, Janusz. Pawliszyn, Solid phase microextraction with thermal desorption using fused silica optical fibers Analytical Chemistry. ,vol. 62, pp. 2145- 2148 ,(1990) , 10.1021/AC00218A019
J MANZOORI, M AMJADI, J ABULHASSANI, Ionic liquid-based single drop microextraction combined with electrothermal atomic absorption spectrometry for the determination of manganese in water samples. Talanta. ,vol. 77, pp. 1539- 1544 ,(2009) , 10.1016/J.TALANTA.2008.09.045
P. Stepnowski, Application of Chromatographic and Electrophoretic Methods for the Analysis of Imidazolium and Pyridinium Cations as Used in Ionic Liquids International Journal of Molecular Sciences. ,vol. 7, pp. 497- 509 ,(2006) , 10.3390/I7110497
Lorena Vidal, Elefteria Psillakis, Claudia E. Domini, Nuria Grané, Frank Marken, Antonio Canals, An ionic liquid as a solvent for headspace single drop microextraction of chlorobenzenes from water samples Analytica Chimica Acta. ,vol. 584, pp. 189- 195 ,(2007) , 10.1016/J.ACA.2006.10.053
O.S Fatoki, R.O Awofolu, Methods for selective determination of persistent organochlorine pesticide residues in water and sediments by capillary gas chromatography and electron-capture detection. Journal of Chromatography A. ,vol. 983, pp. 225- 236 ,(2003) , 10.1016/S0021-9673(02)01730-2
Yi-An Shi, Ming-Zen Chen, Sarangapani Muniraj, Jen-Fon Jen, Microwave-assisted headspace controlled temperature liquid-phase microextraction of chlorophenols from aqueous samples for gas chromatography-electron capture detection. Journal of Chromatography A. ,vol. 1207, pp. 130- 135 ,(2008) , 10.1016/J.CHROMA.2008.07.096