Journal Article

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Journal of chromatography.A

J.Chromatogr.A

30-May

1344

15

22

CI: Copyright (c) 2014; JID: 9318488; 0 (Gels); 0 (Ionic Liquids); 0 (Ions); 0 (Nanotubes, Carbon); 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Polymers); OTO: NOTNLM; 2014/02/24 [received]; 2014/04/03 [revised]; 2014/04/04 [accepted]; 2014/04/13 [aheadofpr

Netherlands

1873-3778; 0021-9673

PMID: 24768123

eng

Journal Article; IM

10.1016/j.chroma.2014.04.013 [doi]

Unknown(0)

24768123

Novel cross-linked polymeric ionic liquid (PIL) bucky gels were formed by free-radical polymerization of polymerizable ionic liquids gelled with multi-walled carbon nanotubes (MWCNT) and used as sorbent coatings for solid-phase microextraction (SPME). The combination of PIL with MWCNTs significantly enhanced the pi-pi interaction between the sorbent coatings and the aromatic analytes. Compared to the neat PIL-based sorbent coating, the PIL bucky gel sorbent coatings demonstrated higher extraction efficiency for the extraction of polycyclic aromatic hydrocarbons (PAHs). A partitioning extraction mechanism was observed for the PIL/MWCNT-based sorbent coatings indicating that the addition of MWCNTs did not seem to affect the extraction mechanism of the sorbent coating. The analyte-to-coating partition coefficients (logKfs) were estimated and the limits of detection (LOD) for selected PIL bucky gel sorbent coating were determined to be in the range of 1-2.5 ng L(-1). Recovery studies were also performed for PAHs in river and tap water to validate the applicability of the developed method.

Elsevier B.V

Zhang,C., Anderson,J.L.

Department of Chemistry, The University of Toledo, Toledo, OH 43606, USA.; Department of Chemistry, The University of Toledo, Toledo, OH 43606, USA; School of Green Chemistry and Engineering, The University of Toledo, Toledo, OH 43606, USA. Electronic add

20140413

http://vp9py7xf3h.search.serialssolutions.com/?charset=utf-8&pmid=24768123

2014