Metal Ion Separations in Polyethylene Glycolbased Aqueous Biphasic Systems (R.D. Rogers et al.). Hydrophobic and Charge Effects in the Partitioning of Solutes in Aqueous Twophase Systems (M.A. Eiteman). Twophase Aqueous Surfactant Systems for the Purification of Biomaterials (C.L. Liu et al.). Integration of Aqueous Twophase Extraction with Other Separation Techniques (R. Kaul, B. Mattiasson). Mass Transfer in Aqueous Twophase Systems (S.S. Save, S.V. Save). Metal Extraction in Twophase Waterpoly(ethylene Glycol)Salt Systems (B.Ya. Spivakov et al.). The Behavior of Actinides in Twophase Aqueous Systems Based on Polyethylene Glycol (B.F. Myasoedov et al.). Purification of Biomolecules Using Temperatureinduced Phase Separation (F. Tjerneld et al.). Poly(ethylene Glycol)protein Interaction in Salt Containing Aqueous Solutions (A. Veide et al.). Interfacial Events in Phase Separation and Cell Partitioning in Aqueous Twophase Systems (F.D. Raymond, D. Fisher). Protein Refolding Using Chaotropic Aqueous Twophase Systems (T.A. Spears, D. Forciniti). Partitioning of Polyethylene Glycol (PEG)protein Conjugates in PEG/Dextran Aqueous Twophase Systems (C. Degado). Use of the Aqueous Twophase Partition Technique for Characterization and Quality Control of Recombinant Proteins (B.Ya. Zaslavsky). 2 additional articles. Index.