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Differential Effects of Lipid-lowering Drugs in Modulating Morphology of Cholesterol Particles
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Differential Effects of Lipid-lowering Drugs in Modulating Morphology of Cholesterol Particles

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Insights into morphological nature of precipitation of cholesterol

Vuk Uskoković1

  • 1Center for Advanced Materials Processing, Clarkson University, Potsdam, NY 13699, USA. vuk21@yahoo.com

Steroids
|January 25, 2008
PubMed

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Coprecipitation is the contamination of a precipitate by otherwise soluble species and occurs via different processes. In colloidal precipitates, coprecipitation occurs via surface adsorption. For instance, barium sulfate has a primary layer of adsorbed barium ions and a secondary layer of nitrate counterions. This results in contamination of the precipitate by barium nitrate.
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The precipitation titration curve demonstrates the change in concentration of one reactant with the volume of titrant added. During the titration of chloride ions with silver nitrate, the precipitation titration curve is divided into three regions: before, at, and after the equivalence point. Before the equivalence point, low redissolution of the sparingly soluble silver chloride precipitate gives a low silver ion concentration. However, in the second region, representing the equivalence point,...
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