title: Influence of buoyancy-driven convection on protein separation by free-flow electrophoresis.
abstract: In free-flow electrophoresis, the stability and reproducibility of the flow field are prerequisites for a satisfactory separation.  Due to the presence of the species to be separated and due to mass- and heat-transfer phenomena, non-uniformities in density inevitably appear, both within the carrier buffer and between the carrier buffer and the sample stream.  On earth they give rise to buoyancy-driven convection which interferes with the separation.  These effects have been quantified by numerical modelling.  Agreement has been found between the numerical results and experimental observations.
authors.affiliation: Laboratoire de Génie Chimique et Electrochimie, Université Paul Sabatier, Toulouse, France.
authors.forename: M J
authors.initials: MJ
authors.lastname: Clifton
authors.forename: N
authors.initials: N
authors.lastname: Jouve
authors.forename: V
authors.initials: V
authors.lastname: Sanchez
mesh_terms: D001709:Biotechnology; D018481:Convection; D004586:Electrophoresis / Q000379:methods*; D004867:Equipment Design; D006358:Hot Temperature; D008962:Models, Theoretical; D011506:Proteins / Q000032:analysis*; D013026:Space Flight; D014893:Weightlessness
chemical_list: D011506:Proteins