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  • Title: Interaction between asymmetric solutes and solvents. Diamides derived from L-valine as stationary phases in gas-liquid partition chromatography.
    Author: Beitler U, Feibush B.
    Journal: J Chromatogr; 1976 Jul 21; 123(1):149-66. PubMed ID: 950349.
    Abstract:
    The resolution of enantiomers of (+/-)-a-amino acid derivatives on optically active diamides derived from L-valine, R1CONHCH[CH(CH3)2]CONHR2, as gas chromatographic stationary phases was studied. The effects of the structure of R1 and R2 in the stationary phases, the structure of the racemic a-amino acid derivatives, temperature, etc., on the separation factors are reported. In the light of these and related results, a more probable mechanism of resolution is presented.
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