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Some theoretical aspects of capillary on-column injections

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Summary

The classical solvent effect is normally assumed to function as a band-narrowing mechanism in capillary oncolumn injections, but there are reasons to doubt the validity of this assumption. Peak conformation can be seriously affected by the nature of the solvent used. When employed to permit “cold non-vaporizing on-column” injections into a heated oven, “secondary cooling” introduces a number of problems, one of the more serious of which is a “thermal de-focus”; this may account for some of the lowered resolution observed when current on-column injectors are used in this manner.

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Authors and Affiliations

  1. Department of Food Science and Technology, University of California, 95616, Davis, CA, U.S.A.

    W. Jennings & G. Takeoka

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  1. W. Jennings
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  2. G. Takeoka
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Dedicated to my good friend, Dr. Leslie S. Ettre, on the occasion of his sixtieth birthday, W. G. J.

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Jennings, W., Takeoka, G. Some theoretical aspects of capillary on-column injections. Chromatographia 15, 575–576 (1982). https://doi.org/10.1007/BF02280377

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