Bi-Langmuir isotherms' applicability for description of interaction of ion-exchange sorbents with protein mixtures.
The sorption of a protein pair on carboxylic cation exchangers with various contents of ionogenic groups is examined. The bi-Langmuir isotherm calculation is carried out from sorption data for single-component systems. It is shown that good agreement of calculated and experimental data is reached only when protein-sorbent interaction weakens because of implementation of the competitive sorption mechanism.
Demin
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AA
Institute of Macromolecular Compounds, Russian Academy of Science, Bolshoi pr. 31, St. Petersburg, 199004, Russia. demin@imc.macro.ru
Melenevsky
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AT
D006863:Hydrogen-Ion Concentration; D007475:Ion Exchange Resins / Q000737:chemistry*; D011506:Proteins / Q000737:chemistry*; D013816:Thermodynamics
D007475:Ion Exchange Resins; D011506:Proteins