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Comparison of the relationships between the retention of dansyl derivatives of aliphatic amines and eluent composition for normal-and reversed-phase liquid-solid TLC systems

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Summary

Dansyl derivatives of four long-chain primary aliphatic amines and five secondary aliphatic amines were chromatographed in two adsorption systems: heptane+diisopropyl ether — silica and water+methanol — octadecyl cilica. In the normal-phase system RM (log k′) values were approximately linearly dependent on the log concentration of diisopropyl ether in the eluent; the separation selectivity of dansyl C8−C12 primary amines was poor. For the reversed-phase system the derivatives of both primary and secondary amines were well separated, the log k′ values being linearly dependent on per cent concentration of methanol in the eluent.

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Authors and Affiliations

  1. Department of Inorganic and Analytical Chemistry, Medical Academy, Lublin, Poland

    E. Soczewiński & J. Jusiak

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  1. E. Soczewiński
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  2. J. Jusiak
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Soczewiński, E., Jusiak, J. Comparison of the relationships between the retention of dansyl derivatives of aliphatic amines and eluent composition for normal-and reversed-phase liquid-solid TLC systems. Chromatographia 15, 309–311 (1982). https://doi.org/10.1007/BF02265683

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  • DOI: https://doi.org/10.1007/BF02265683

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