PMID- 21185028 OWN - NLM STAT- MEDLINE DCOM- 20110421 LR - 20151119 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1218 IP - 3 DP - 2011 Jan 21 TI - Electrochemical preparation of polyaniline-ionic liquid based solid phase microextraction fiber and its application in the determination of benzene derivatives. PG - 387-91 LID - 10.1016/j.chroma.2010.12.017 [doi] AB - A polyaniline-ionic liquid (i.e. 1-butyl-3-methylimidazolium tetrafluoroborate, [C(4)mim][BF(4)]) composite film coated platinum wire (PANI-IL/Pt) was prepared by electrochemical method for the first time. Scanning electron microscopy image showed that the PANI-IL composite film was even and porous. When the PANI-IL/Pt was used as a fiber for the headspace solid-phase microextraction (HS-SPME) of some benzene derivatives (i.e. 1,3-dimethylbenzene, 1,2-dimethylbenzene, 1,4-dichlorobenzene, 1,2-dichlorobenzene, 1,3,5-trimethylbenzene and 1,2,4-trimethylbenzene), followed by gas chromatographic analysis, it presented excellent performance, which was much better than that of PANI/Pt and commercial polydimethylsiloxane fiber. Hence the fiber was coupled with gas chromatography for the determination of these benzene derivatives. It was found that under the optimized conditions the linear ranges were 0.04-400 mug L(-1) with correlation coefficients above 0.99, the detection limits were 9.3-48.1 ng L(-1) (S/N=3), the relative standard deviations (RSDs) were smaller than 5.1% for five successive measurements with single fiber, and the RSDs for fiber-to-fiber were 5.0-11.1% (n=3) for different benzene derivatives. The proposed method was successfully applied to the extraction and determination of benzene derivatives in waste water and tap water, and the recoveries were 87.1-108.1% for different analytes. Therefore, the PANI-IL/Pt is a promising SPME fiber. CI - Copyright A(c) 2010 Elsevier B.V. All rights reserved. FAU - Zhao, Faqiong AU - Zhao F AD - College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China. fqzhao@whu.edu.cn FAU - Wang, Meili AU - Wang M FAU - Ma, Yuyu AU - Ma Y FAU - Zeng, Baizhao AU - Zeng B LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20101213 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (1-butyl-3-methylimidazolium tetrafluoroborate) RN - 0 (Aniline Compounds) RN - 0 (Benzene Derivatives) RN - 0 (Imidazoles) RN - 0 (Ionic Liquids) RN - 0 (Water Pollutants, Chemical) RN - 0 (polyaniline) RN - 451W47IQ8X (Sodium Chloride) RN - 49DFR088MY (Platinum) SB - IM MH - Aniline Compounds/*chemistry MH - Benzene Derivatives/analysis/*isolation & purification MH - Chromatography, Liquid MH - Drug Stability MH - Electrochemical Techniques MH - Imidazoles/chemistry MH - Ionic Liquids/*chemistry MH - Microscopy, Electron, Scanning MH - Platinum/chemistry MH - Reproducibility of Results MH - Sodium Chloride/chemistry MH - Solid Phase Microextraction/instrumentation/*methods MH - Temperature MH - Time Factors MH - Water Pollutants, Chemical/analysis/*isolation & purification EDAT- 2010/12/28 06:00 MHDA- 2011/04/22 06:00 CRDT- 2010/12/28 06:00 PHST- 2010/10/07 00:00 [received] PHST- 2010/11/27 00:00 [revised] PHST- 2010/12/07 00:00 [accepted] PHST- 2010/12/28 06:00 [entrez] PHST- 2010/12/28 06:00 [pubmed] PHST- 2011/04/22 06:00 [medline] AID - S0021-9673(10)01693-6 [pii] AID - 10.1016/j.chroma.2010.12.017 [doi] PST - ppublish SO - J Chromatogr A. 2011 Jan 21;1218(3):387-91. doi: 10.1016/j.chroma.2010.12.017. Epub 2010 Dec 13.