Collect. Czech. Chem. Commun. 1983, 48, 3270-3278
https://doi.org/10.1135/cccc19833270

Capillary gas-liquid chromatography of pyridine alkyl homologues

Marta Novrocíková, Jan Novrocík and Jan Vymětal

Research Institute of Coal Tar Chemistry, Urx Works, 757 27 Valašské Meziříčí

Abstract

The Kováts retention indices (I) were determined by capillary gas-liquid chromatography on three stationary phases of different polarity, viz. OV-1, Ucon LB-550, and Reoplex 400, for 70 pyridine alkyl homologues present in coal tar. The increments for some alkyl groups were assessed, and the Kováts indices were predicted for 46 pyridine alkyl homologues and compared with the experimental data. The parameters of the linear dependences I(1) = kI(2) + q for pairs of stationary phases (1) and (2) were evaluated.