Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.chroma.2008.09.040
Title: Ionic liquid supported three-phase liquid-liquid-liquid microextraction as a sample preparation technique for aliphatic and aromatic hydrocarbons prior to gas chromatography-mass spectrometry
Authors: Basheer, C. 
Alnedhary, A.A.
Madhava Rao, B.S.
Balasubramanian, R. 
Lee, H.K. 
Keywords: Environmental analysis
Microextraction
Rainwater and three-phase liquid-phase microextraction
Issue Date: 7-Nov-2008
Source: Basheer, C., Alnedhary, A.A., Madhava Rao, B.S., Balasubramanian, R., Lee, H.K. (2008-11-07). Ionic liquid supported three-phase liquid-liquid-liquid microextraction as a sample preparation technique for aliphatic and aromatic hydrocarbons prior to gas chromatography-mass spectrometry. Journal of Chromatography A 1210 (1) : 19-24. ScholarBank@NUS Repository. https://doi.org/10.1016/j.chroma.2008.09.040
Abstract: For the first time hollow fiber-protected ionic liquid supported three-phase (liquid-liquid-liquid) microextraction (HFM-LLLME) was developed for the gas chromatography-mass spectrometric (GC-MS) analysis of aromatic and aliphatic hydrocarbons. The hydrocarbons were extracted from 10 m1 of aqueous samples though small volumes of ionic liquid and organic solvent in the hollow fiber membrane HFM) wall and channel, respectively. The ionic liquid was immiscible with both the aqueous sample and the organic solvent (toluene). After extraction, the enriched solvent was directly injected into a GC-MS system for analysis without any further pretreatment. Ionic liquid supported HFM-LLLME shows better extraction performance than two-phase HFM-liquid-phase microextraction, in which only organic solvent is involved, and solid-phase microextraction. The ionic liquid and organic solvent combination found most suitable for HFM-LLLME was 1-butyl-3-methylimidazolium hexafluorophosphate, and toluene, respectively. This new technique provided up to 210-fold enrichment of aliphatic and aromatic hydrocarbons in 40 min with good reproducibility (
Source Title: Journal of Chromatography A
URI: http://scholarbank.nus.edu.sg/handle/10635/87539
ISSN: 00219673
DOI: 10.1016/j.chroma.2008.09.040
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

66
checked on Mar 27, 2018

WEB OF SCIENCETM
Citations

58
checked on Mar 27, 2018

Page view(s)

28
checked on Mar 11, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.