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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Meng, Yunjing Anderson, Jared L. |
| Description | Country affiliation: United States Author Affiliation: Meng Y ( Department of Chemistry, The University of Toledo, 2801 W. Bancroft Street MS 602, Toledo, OH 43606, USA.) |
| Abstract | A new generation polymeric ionic liquid (PIL), poly(1-4-vinylbenzyl)-3-hexadecylimidazolium bis[(trifluoromethyl)sulfonyl]imide (poly(VBHDIm(+) NTf(2)(-))), was synthesized and is shown to exhibit impressive selectivity towards the extraction of 12 polycyclic aromatic hydrocarbons (PAHs) from aqueous samples when used as a sorbent coating in direct-immersion solid-phase microextraction (SPME) coupled to gas chromatography (GC). The PIL was imparted with aromatic character to enhance π-π interactions between the analytes and the sorbent coating. For comparison purposes, a PIL with similar structure but lacking the π-π interaction capability, poly(1-vinyl-3-hexadecylimidazolium bis[(trifluoromethyl)sulfonyl]imide) (poly(HDIm(+) NTf(2)(-))), as well as a commercial polydimethylsiloxane (PDMS) sorbent coating were evaluated and exhibited much lower extraction efficiencies. Extraction parameters, including stir rate and extraction time, were studied and optimized. The detection limits of poly(VBHDIm(+) NTf(2)(-)), poly(HDIm(+) NTf(2)(-)), and PDMS coatings varied between 0.003-0.07 µg L(-1), 0.02-0.6 µg L(-1), and 0.1-6 µg L(-1), respectively. The partition coefficients (logK(fs)) of eight PAHs to the three studied fiber coatings were estimated using a static SPME approach. This study represents the first report of analyte partition coefficients to any PIL-based material. |
| ISSN | 00219673 |
| Issue Number | 40 |
| Volume Number | 1217 |
| e-ISSN | 18733778 |
| Journal | Journal of Chromatography A |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2010-10-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Chromatography, Gas Methods Ionic Liquids Chemistry Polycyclic Hydrocarbons, Aromatic Solid Phase Microextraction Nuclear Magnetic Resonance, Biomolecular Isolation & Purification Polymers Sensitivity And Specificity Journal Article Research Support, U.s. Gov't, Non-p.h.s. Discipline Analytical Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Medicine Analytical Chemistry Biochemistry |
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