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Electrophoretic charge of a cylindrical macroion in aqueous 1 : 1 electrolyte
Author(s) -
Mills R. A.
Publication year - 1970
Publication title -
biopolymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 125
eISSN - 1097-0282
pISSN - 0006-3525
DOI - 10.1002/bip.1970.360091211
Subject(s) - dimensionless quantity , chemistry , electrolyte , charge (physics) , electrophoresis , linearization , aqueous solution , piecewise , chemical physics , boundary (topology) , thermodynamics , mathematical analysis , chromatography , physics , mathematics , nonlinear system , quantum mechanics , electrode
The potential problem is formulated for rodlike macroions and reduced to a single dimensionless equation with appropriate boundary conditions. A method of solution based on piecewise linearization of the potential equation is detailed and compared with two other approaches. It is suggested that the present method yields improved estimates of macroion charges. Some numerical results are included, and the relation between electrophoretic charge and macroion charge is considered.