New Sorbents for Thin-Layer Chromatography

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Recent Advances in Thin-Layer Chromatography
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Summary

The chromatographic and physical properties of surface-modified pre-coated supports for thin-layer chromatography are discussed. For reversed-phase supports substance Rf values decrease with the length of the alkyl chain and the degree of modification. Likewise, for a given solvent of constant composition the times required for development become longer. Owing to their pronounced hydrophobic nature reversed-phase supports which have been modified to the maximum extent can only be used with mobile phases having a water content not exceeding approximately 40%. This limitation does not apply, however, to reversed-phase supports having a defined low degree of surface modification.

Similarly, the hydrophilic aminopropyl and cyanopropyl modified plates do not impose any limitations to solvent composition. These medium-polar pre-coated layers can offer a wide range of interactions including ion exchange, adsorption, and hydrophobic interactions.

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© 1988 Springer Science+Business Media New York

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Fischer, W., Hauck, H.E., Jost, W. (1988). New Sorbents for Thin-Layer Chromatography. In: Dallas, F.A.A., Read, H., Ruane, R.J., Wilson, I.D. (eds) Recent Advances in Thin-Layer Chromatography. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-2221-2_15

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  • DOI: https://doi.org/10.1007/978-1-4899-2221-2_15

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4899-2223-6

  • Online ISBN: 978-1-4899-2221-2

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