1. Department of Chemistry, Dresden University of Technology, Mommsenstra?e 13, DDR-8027, Dresden, GDR 2. DSM Research, P.O. Box 18, 6160 MD, Geleen, The Netherlands
Abstract:
Summary The separation of poly(styrene-co-acrylonitrile) is presented in open tubular stainless steel columns and columns packed with non-porous glass beads. Furthermore separation on a short silica packed column proved to be better than on a similar longer column. A definition of the term high performance precipitation liquid chromatography is suggested for gradient elution with sample injection into a starting eluent which is a nonsolvent for the copolymer under investigation. The choice of a suitable solvent-nonsolvent combination is of essential importance.