Summary
The organic molten salt, 1-ethylpyridinium bromide, is suitable for use as a stationary phase in gas chromatography. It has a usable liquid temperature range of 110 to 160°C. It undergoes a single phase transition at 110°C which corresponds to the bulk melting point. Below the melting point the phase may be used as a selective adsorbent, although column efficiency and peak symmetry deteriorate as the temperature is lowered from the melting point. Above the melting point, ethylpyridinium bromide can be used to separate a wide variety of organic compounds retaining strongly those compounds possessing large dipole or hydrogen bonding functional groups.
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References
V. C. Reinsborough, Rev. Pure Appl. Chem.18, 281 (1968).
J. E. Gordon, in “Techniques and Methods of Organic and Organometallic Chemistry”,D. B. Denney, ed., M. Dekker Inc., New York, 1961, p. 51.
J. E. Lind, Adv. Molten Salt Chem.2, 1 (1973).
J. E. Gordon, J. E. Selwyn, R. L. Thorne, J. Org. Chem.31, 1925 (1966).
F. Pacholec, H. T. Butler, C. F. Poole, Anal. Chem.54, 1938 (1982).
R. A. Carpio, L. A. King, R. E. Lindstrom, J. C. Nardi, C. L. Hussey, J. Electrochem. Soc.126, 1644 (1979).
V. R. Koch, L. L. Miller, R. A. Osteryoung, J. Amer. Chem. Soc.98, 5277 (1976).
P. F. McCrea, in “New Developments in Gas Chromatography”,H. Purnell, ed., Wiley, New York, 1973; p. 187.
J. R. Conder, C. L. Young, “Physiochemical Measurements by Gas Chromatography”, Wiley, New York, 1979; p. 459.
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Pacholec, F., Poole, C.F. Stationary phase properties of the organic molten salt ethylpyridinium bromide in gas chromatography. Chromatographia 17, 370–374 (1983). https://doi.org/10.1007/BF02262375
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DOI: https://doi.org/10.1007/BF02262375