Chromatographia

, Volume 35, Issue 9–12, pp 567–573 | Cite as

Instrumentation for comprehensive two-dimensional capillary supercritical fluid-gas chromatography

  • Z. Liu
  • I. Ostrovsky
  • P. B. Farnsworth
  • M. L. Lee
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Summary

A two-dimensional supercritical fluid-gas chromatography system was constructed and evaluated. A 50-μm i.d. capillary column coated with a 50 % cyanopropyl polysilixane stationary phase was used as the firstdimensional column. Group-type separations of polycyclic aromatic hydrocarbons, based on the number of aromatic rings, were achieved using this column under SFC conditions. A 25-μm i.d. liquid crystal column was used as the second-dimensional column under GC conditions. The effluent from the first column (SFC) was received continuously by the second column (GC) through a thermal desorption modulator. The thermal desorption modulator (prepared at the head of the second column) generated a series of concentration pulses from the first column effluent. These concentration pulses served as injections to the second column, and were developed into a corresponding series of high-speed chromatograms. Grouptype sample bands from the first column were separated into individual components on the second column. All sample substances passed through both columns to generate two sets of retention data, which could be used for more accurate compound identification.

Key Words

Supercritical fluid chromatography Gas chromatography High speed analysis Thermal desorption Two dimensional analysis 
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References

  1. [1]
    J. C. Giddings, J. High Resolut. Chromatogr./Chromatogr. Commun.10, 319 (1987).CrossRefGoogle Scholar
  2. [2]
    G. Guiochon, L. A. Beaver, M. F. Gonnord, A. M. Siouffi, M. Zakaria, J. Chromatogr.255, 415 (1983).CrossRefGoogle Scholar
  3. [3]
    Z. Juvancz, K. M. Payne, K. E. Markides, M. L. Lee, Anal. Chem.62, 1384 (1990).CrossRefGoogle Scholar
  4. [4]
    J. M. Levy, J. P. Guzowski, W. E. Huhak, J. High Resolut. Chromatogr./Chromatogr. Commun.10, 337 (1987).CrossRefGoogle Scholar
  5. [5]
    G. Guiochon, M. F. Gonnord, M. Zakaria, L. A. Beaver, A. M. Siouffi, Chromatographia17, 121 (1983).Google Scholar
  6. [6]
    J. A. Giddings, Anal. Chem.56, 1258A (1984).CrossRefPubMedGoogle Scholar
  7. [7]
    J. M. Davis, Anal. Chem.63, 2141 (1991).CrossRefGoogle Scholar
  8. [8]
    M. M. Bushey, J. W. Jorgenson, Anal. Chem.62, 978 (1990).CrossRefGoogle Scholar
  9. [9]
    M. M. Bushey, J. W. Jorgenson, Anal. Chem.62, 161 (1990).CrossRefPubMedGoogle Scholar
  10. [10]
    Z. Liu, J. B. Phillips, J. Chromatogr.29, 227 (1991).Google Scholar
  11. [11]
    J. J. Koski, E. D. Lee, I. Ostrovsky, M. L. Lee, unpublished results.Google Scholar
  12. [12]
    Z. Liu, J. B. Phillips, J. Microcol. Sep.1, 249 (1989).CrossRefGoogle Scholar
  13. [13]
    I. Ostrovsky, M. L. Lee, Anal. Chem., in press.Google Scholar
  14. [14]
    H.-C. K. Chang, K. E. Markides, J. S. Bradshaw, M. L. Lee, J. Chromatogr. Sci.26, 280 (1988).Google Scholar
  15. [15]
    S. Rokushika, K. P. Naikwadi, A. L. Jadhav, H. Hatano, J. High Resolut. Chromatogr./Chromatogr. Commun.8, 480 (1985).CrossRefGoogle Scholar
  16. [16]
    J. B. Phillips, Z. Liu, C. J. Venkatramani, V. Jain, Proc. 13th Int. Symp. on Capillary Chromatogr.260 (1991).Google Scholar
  17. [17]
    A. Van Es, J. Rijks, C. Cramers, J. Chromatogr.477, 39 (1989).CrossRefGoogle Scholar
  18. [18]
    Z. Liu, P. B. Farnsworth, M. L. Lee, J. Microcol. Sep.,4, 199 (1992).CrossRefGoogle Scholar
  19. [19]
    Y. Liu, F. J. Yang, J. Microcol. Sep.3, 249 (1991).CrossRefGoogle Scholar
  20. [20]
    F. Doue, G. Guiochon, Separation Sci.5, 197 (1970).Google Scholar

Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1993

Authors and Affiliations

  • Z. Liu
    • 1
  • I. Ostrovsky
    • 1
  • P. B. Farnsworth
    • 1
  • M. L. Lee
    • 1
  1. 1.Department of ChemistryBrigham Young UniversityProvoUSA

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