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Cited by 484

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Use of Ionic Liquids for Liquid-Phase Microextraction of Polycyclic Aromatic Hydrocarbons

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Liu, Jing-fu, Jiang, Gui-bin, Chi, Yu-guang, Cai, Ya-qi, Zhou, Qing-xiang, Hu, Jing-Tian·2003·Analytical Chemistry
DOI 10.1021/ac034506m
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Abstract

This paper demonstrates, for the first time, that ionic liquids (IL) such as 1-octyl-3-methylimidazolium hexafluorophosphate ([C(8)MIM][PF(6)]) are excellent extraction solvents in liquid-phase microextraction (LPME). The unique properties of nonvolatility and adequate viscosity allow IL to be conveniently adopted as extraction solvents in both direct-immersion and headspace LPME. Model compounds, polycyclic aromatic hydrocarbons (PAHs), are conveniently and rapidly enriched in a 3-microL drop of [C(8)MIM][PF(6)] suspended on the tip of a microsyringe followed by liquid chromatographic determination. Compared to 1-octanol, a larger volume drop of [C(8)MIM][PF(6)] can be formed and survive for a longer extraction time; therefore, a much higher enrichment factor for PAHs can be reached. For low-volatility PAHs, direct-immersion LPME provides higher enrichment factors than that of headspace LPME. However, the enrichment factor obtained by headspace LPME was almost 3-fold of that by direct-immersion LPME in a 30-min extraction of the most volatile PAH, naphthalene. For 30-min direction-immersion LPME of EPA priority PAHs, the enrichment factor, correlation coefficient (R(2)), and reproducibility (RSD, n = 5) were in the range of 42-166, 0.9169-0.9976, and 2.8-12%, respectively. Considering that IL can be easily prepared from relatively inexpensive materials and tuned by combination of different anions and cations for task-specific extraction of analytes from various solvent media, this proposed method should have great potentiality in sample preparation. Furthermore, the nonvolatility of IL makes it potentially useful for headspace LPME of volatile analytes.

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Research works printed but not linked: 43

  1. Welton T., 1999, Chem. Rev., 99, 2083, 10.1021/cr980032t · DOI · Paper page
  2. Wilkes J. S., 1992, J. Chem. Soc., Chem. Commun., 965, 967
  3. Huddleston J. G., 1998, Chem. Commun., 1765, 1766
  4. Fadeev A. G., 2001, Chem. Commun., 295, 296
  5. Visser A. E., 2001, Chem. Commun., 135, 136
  6. Blanchard L. A., 1999, Nature, 399, 29, 10.1038/19887 · DOI
  7. Brown R. A., 2001, J. Am. Chem. Soc., 123, 1255
  8. Boesmann A., 2001, Angew. Chem., Int. Ed., 40, 2699
  9. Schafer T., 2001, Chem. Commun., 1622, 1623
  10. Armstrong D. W., 1999, Anal. Chem., 71, 3876
  11. Armstrong D. W., 2002, J. Am. Chem. Soc., 124, 14254
  12. Branco L. C., 2002, Angew. Chem., Int. Ed., 41, 2773, 10.1002/1521-3773(20020802)41:15<2771::AID-ANIE2771>3.0.CO;2-U · DOI
  13. Visser A. E., 2002, Environ. Sci. Technol., 36, 2529, 10.1021/es0158004 · DOI
  14. Huddleston J. G., 2001, Green Chem., 3, 164, 10.1039/b103275p · DOI
  15. Abraham M. H., 2003, Ind. Eng. Chem. Res., 42, 418, 10.1021/ie020520y · DOI
  16. Carda-Broch S., 2003, Anal. Bioanal. Chem., 375, 199, 10.1007/s00216-002-1684-1 · DOI
  17. Shetty P. H., 1987, J. Chromatogr., 411, 79, 10.1016/S0021-9673(00)93960-8 · DOI
  18. Berthod A., 2000, Chromatographia, 53, 68
  19. Armstrong D. W., 2001, Anal. Chem., 73, 3686
  20. Yanes E. G., 2001, Anal. Chem., 73, 3844, 10.1021/ac010263r · DOI · Paper page
  21. Vaher M., 2001, Chromatographia, 53, 306, 10.1007/BF02490346 · DOI
  22. Vaher M., 2002, Electrophoresis, 23, 430, 10.1002/1522-2683(200202)23:3<426::AID-ELPS426>3.0.CO;2-8 · DOI
  23. Qin W., 2003, Analyst, 128, 41
  24. Chun S., 2001, Anal. Chem., 73, 3741, 10.1021/ac010061v · DOI
  25. Liu S., 1995, Anal. Chem., 67, 2049
  26. Cardoso A. A., 1995, Anal. Chem., 67, 2566, 10.1021/ac00111a011 · DOI
  27. Jeannot M. A., 1997, Anal. Chem., 69, 239
  28. He Y., 1997, Anal. Chem., 69, 4640
  29. Wang Y., 1998, Anal. Chem., 70, 4614
  30. Ma M. H., 1998, Anal. Chem., 70, 3919
  31. Ma M. H., 1999, Anal. Chem., 71, 393
  32. Genfa Z., 2000, Anal. Chem., 72, 3170, 10.1021/ac000069p · DOI
  33. Theis A. L., 2001, Anal. Chem., 73, 5654, 10.1021/ac015569c · DOI · Paper page
  34. Pedersen-Bjergaard S., 1999, Anal. Chem., 71, 2656, 10.1021/ac990055n · DOI · Paper page
  35. Zhao L., 2002, Anal. Chem., 74, 2486, 10.1021/ac011124c · DOI
  36. Shen G., 2003, Anal. Chem., 75, 103
  37. Varma R. S., 2001, Chem. Commun., 643, 644
  38. Visser A. E., 2000, Ind. Eng. Chem. Res., 39, 3604, 10.1021/ie000426m · DOI · Paper page
  39. Anthony J. L., 2001, J. Phys. Chem. B, 105, 10949, 10.1021/jp0112368 · DOI · Paper page
  40. Law G., 2001, Langmuir, 17, 6141
  41. Seddon K. R., 2000, Pure Appli. Chem., 72, 2287
  42. Florence T. M., 1971, J. Anal. Chim. Acta, 54, 377, 10.1016/S0003-2670(01)82142-5 · DOI
  43. Marce R. M., 2000, J. Chromatogr., A, 885, 290, 10.1016/S0021-9673(00)00428-3 · DOI

Cited by

Metadata

Authors
Liu, J.-F., Jiang, G.-B., Chi, Y.-G., Cai, Y.-Q., Zhou, Q.-X., & Hu, J.-T.
Venue
Analytical Chemistry
Publisher
American Chemical Society (ACS)
Published
2003-09-04
Volume
75
Issue
21
Pages
5870-5876
ISSN
  • 0003-2700 (ISSN-L)
  • 1520-6882
DOI
10.1021/ac034506m
OpenAlex
W2077704724
Cited by
484
References
1
FWCI
15.34
Type
journal article
Language
en
Open access
green

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