... membranes are composite membranes made by interfacial polymerization; aromatic polypiperazine is an example of a widely-used nanofiltration membrane There are many commercially available RO membranes, ... Presented at Fourth National Meeting of the North American Membrane Society, May 29-31, 1991, San Diego, California Bhattacharyya, D., and Kothari, A. , "Separation of Hazardous Organics by Low ... "Determination of Interfacial Parameters of Cellulose Acetate Membrane Materials by HPLC", Journal of Liquid Chromatography, 12, 2083 (1989) Garcia, A. , and Medina, G., "Predicting Membrane Performance...