Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/98281
Type: Artigo de periódico
Title: The Osmosedimentation Effect: Its Application To Chemical And Biochemical Separation.
Author: Galembeck F.
Costa M.C.
Abstract: 1. The fundamentals of the osmosedimentation effect are reviewed and its applications to chemical and biochemical separation problems are presented. 2. The osmosedimentation effect (solute sedimentation enhanced by osmotic and reverse-osmotic solvent mass currents spontaneously generated within a vertical dialysis cell) may be described by using standard treatments of non-equilibrium thermodynamics. 3. This effect allows many hitherto unfeasible or very difficult experiments to be performed: polymer and particle MW determination, under gravity or low-speed (1000-5000 rpm) centrifugation; dissolved protein concentration, by low-speed centrifugation; density gradient generation, at low centrifugation speeds; fast separation of fine particles; particle concentration and fractionation, under gravity and low speed centrifugation. 4. Osmocentrifugation methods may be easily implemented in any laboratory, as their requirements are: the availability of standard centrifuges and rotors, inexpensive dialysis cells and cellulose acetate membranes, which can be prepared in the laboratory.
Editor: 
Rights: aberto
Identifier DOI: 
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-0023493213&partnerID=40&md5=b06801aebbcda0190e06acd0421cae52
Date Issue: 1987
Appears in Collections:Unicamp - Artigos e Outros Documentos

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