POLYELECTROLYTES IN MIXED SALTS - SCATCHARD PLOTS OBTAINED BY MEANS OF POISSON-BOLTZMANN CALCULATIONS

被引：15

作者：

FOGOLARI, F

MANZINI, G

QUADRIFOGLIO, F

机构：

[1] SCUOLA INT SUPER STUDI AVANZATI,DEPT BIOMED SCI & TECHNOL,I-34014 TRIESTE,ITALY

[2] UNIV TRIESTE,DEPT BIOCHEM BIOPHYS & MACROMOLEC CHEM,I-34127 TRIESTE,ITALY

来源：

BIOPHYSICAL CHEMISTRY | 1992年 / 43卷 / 02期

关键词：

POLYELECTROLYTE; POISSON-BOLTZMANN THEORY; SCATCHARD PLOT;

D O I：

10.1016/0301-4622(92)80035-4

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The problem of the interaction between dilute polyelectrolytes and divalent counterions in the presence of a supporting uni-univalent salt is approached by means of Poisson-Boltzmann calculations. A very general definition of "bound" and "free" concentrations is given under limiting conditions, but it is shown that it can be retained also at finite polymer concentrations. With such definitions Scatchard plots can be obtained. Values of the Scatchard constant K-2(0) are given as a function of the reduced charge density, of the radius of the polymer and of the concentration of the supporting monovalent salt.

引用

页码：213 / 219

页数：7

共 13 条

[1] THE COUNTERION DISTRIBUTION IN SOLUTIONS OF ROD-SHAPED POLYELECTROLYTES [J].