Modeling of Aqueous Biomolecules Using a New Free-Volume Group Contribution Model
作者： G. R. Pazuki , V. Taghikhani , M. Vossoughi
DOI: 10.1021/IE8009389
关键词: Ionic bonding 、 Aqueous solution 、 Activity coefficient 、 Ammonium sulfate 、 Chemistry 、 Vapor pressure 、 Biomolecule 、 Organic chemistry 、 Thermodynamics 、 Amino acid 、 Solubility
摘要: In this article, a new group contribution model is suggested for obtaining the thermodynamic properties of biomolecules in aqueous solutions. Accordingly, Freed-FV has been applied combinatorial free-volume term. The activity coefficients, solubilities, densities, and vapor pressures amino acids simple peptides solutions were correlated, using proposed model. Group interaction parameters obtained by use experimental data from available literature. results demonstrate that can accurately correlate coefficient, solubility, density, pressure acid peptide Furthermore, osmotic containing lysozyme ammonium sulfate calculated at ionic strengths 1 3 M pH values 4, 6, 8. compared with those vi...
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