Determination of Interfacial Parameters of Copolyamide Membrane Material by HPLC

The High Performance Liquid Chromatography (HPLC) method is employed with copolyamide-170 (PA-170) membrane material as packing to determine the retention volume (V'R) and equilibrium distribution coefficient (K'A) of both inorganic solutes and organic solutes. Based on the experimental data, the interfacial parameters of the packing material are obtained.