The graphitized carbon material Carbotrap is often used for sampling gaseous organic compounds. Knowledge of the retention volumes of the compounds of interest on Carbotrap is required to design sampling protocols. Published data are examined here to develop correlation equations between retention volume and both vapor pressure and boiling point. The 38 compounds considered included ethane, butane, 1,2-dichloroethane, benzene, trichloroethene, 1,1,2-trichloroethane, phenol, toluene, chlorobenzene, n-butylamine, 4-heptanone, p-dichlorobenzene, decane, n-butylbenzene, biphenyl, n-dodecane, n-tetradecane. The correlation equations are examined in terms of gas-solid adsorption theory. They allow prediction of retention behavior for compounds for which experimental retention data are not yet available.
