A study of solid surface polarity using inverse gas chromatographic retention data

Summary Sensitivities of a solid surface to dispersive and nondispersive (polar) interactions can be readily estimated by a multiple regression analysis of inverse gas chromatographic retention data of a set of probe solutes. This analysis is based on linear free energy relationships (LFERs). The sensitivity to the latter type of interactions can be used as a measure of the surface polarity of the solid. This has been shown in the case of a graphitized carbon fiber and the method is also applicable to other solids.