1. Membrane Extraction Technology Ltd., Unit 8 Wharfside, Rosemont Road, Wembley HA0 4PE, U.K., Technical Development, GlaxoSmithKline, Temple Hill, Dartford, Kent DA1 5AH, U.K., Department of Chemical Engineering and Chemical Technology, Imperial College of Science, Technology and Medicine, London SW7 2BY, U.K., Merpro Limited, Brent Avenue, Montrose, Angus DD10 9PB, U.K., Centre for Surface Chemistry and Catalysis, Katholieke Universiteit Leuven, Kasteelpark Arenberg 23, 3001 Leuven, Belgium, and W.R....