(super 29)Si NMR and small-angle X-ray scattering studies of the effect of alkaline ions (Li(super +), Na(super +), and K(super +)) in silico-alkaline sols
Article Abstract:
The structure and size distribution of molecular and colloidal compounds in sols with different silica/alkaline molar ratio and alkaline ions has been investigated using (super 29)Si nuclear magnetic resonance and small-angle X-ray scattering techniques. To this end, experimental small-angle X-ray scattering curves were simulated using a simple structural model which is based on the assumption that the sol contains a multimodal class of weakly interacting hard spheres immersed in a liquid matrix. Results reveal strong interactions between alkaline ion and hydroxide and between alkaline ion and silicate species.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
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Extended light scattering investigations on dihydroxy bile salt micelles in low-salt aqueous solutions
Article Abstract:
A study was conducted to analyze micellar solutions of the dihydroxy bile salt NaGDC using extended static and dynamic light scattering techniques. The sample purity of the dihydroxy bile salt was determined by mass spectrometry. The molar mass was then determined using the Rayleigh ratio at an angle of 90 degrees. Experimental results indicated that a very good agreement between theory and experimental data.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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A light scattering theory applicable to ions which aggregate in solution and possess two charge centers of one sign and one charge center of the opposite sign: aggregation of BTA-243 in an aqueous medium
Article Abstract:
Research aiming to relate drug aggregation number and micellar charge to solution turbidity is presented. It was possible to estimate from light scattering data the size of aggregates in solution of ions, each of which has two charge centres of one sign and one charge centre of the opposite sign.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2000
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