Separation of isomers of saturated polycyclic hydrocarbons in packed capillary columns with graphitized thermal carbon black

Diazines on graphene: adsorption, structural variances and electronic states

“…In this respect, gas chromatography techniques are important among the analytical methods to use first of all, for their identifications. 17,18 Accordingly, A. Kiselev et al explored and reported the effect of thermodynamic properties of adsorption of diazines on graphitized thermal carbon black: specifically, the authors anticipated Henry's constants for pyridazine, pyrimidine, and pyrazine to be 8.76, 3.27 and 3.30 cm 3 m À2 , respectively, at 350 K, and 3.94, 1.51 and 1.53 cm 3 m À2 , respectively, at 373 K. [19][20][21] Herein, it is interesting to note that among the three diazines, pyridazine demonstrates the strongest retention. Initially, taking into account the pyridazine anomaly, ad hoc amplitude attuning for Buckingham-Corner atom-atomic potential functions within the frame of semiempirical molecular statistical theory of adsorption was carried out.…”