Collect. Czech. Chem. Commun. 1982, 47, 576-581

Micro-packed columns with graphitized thermal carbon black

Ladislav Feltl, Marcela Antonínová and Eva Smolková

Department of Analytical Chemistry, Charles University, 128 40 Prague 2


Two types of column were prepared, conventional packed and micro-packed with Sterling MT graphitized thermal carbon black (GTCB). Comparison demonstrated the advantages of the micro-packed column. The adsorption of C5-C10 alkanes and C4-C10 1-alkenes was studied on these columns in the interval 448.15-488.15 K. The differential heats of adsorption were calculated by the linear regression method from the temperature dependence of the specific retention volumes and the usefulness of the micro-packed column for determination of adsorption thermodynamic quantities was evaluated on the basis of the results. The separation efficiency of the two columns was demonstrated on the separation of a mixture of the geometric isomers of tricyclododecane.