Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.chroma.2008.09.040
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dc.titleIonic liquid supported three-phase liquid-liquid-liquid microextraction as a sample preparation technique for aliphatic and aromatic hydrocarbons prior to gas chromatography-mass spectrometry
dc.contributor.authorBasheer, C.
dc.contributor.authorAlnedhary, A.A.
dc.contributor.authorMadhava Rao, B.S.
dc.contributor.authorBalasubramanian, R.
dc.contributor.authorLee, H.K.
dc.date.accessioned2014-10-08T08:32:42Z
dc.date.available2014-10-08T08:32:42Z
dc.date.issued2008-11-07
dc.identifier.citationBasheer, 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
dc.identifier.issn00219673
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/87539
dc.description.abstractFor 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 (
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.chroma.2008.09.040
dc.sourceScopus
dc.subjectEnvironmental analysis
dc.subjectMicroextraction
dc.subjectRainwater and three-phase liquid-phase microextraction
dc.typeArticle
dc.contributor.departmentCHEMISTRY
dc.contributor.departmentDIVISION OF ENVIRONMENTAL SCIENCE & ENGG
dc.description.doi10.1016/j.chroma.2008.09.040
dc.description.sourcetitleJournal of Chromatography A
dc.description.volume1210
dc.description.issue1
dc.description.page19-24
dc.description.codenJCRAE
dc.identifier.isiut000260986100003
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