Interfacial tensiometry method for the analysis of model systems in comparison with blood as the most important biological liquid

Abstract

Interfacial tensiometry of various liquids is an informative colloid-chemical method for the analysis of various liquids in many areas of natural sciences and medical practice. This method of dynamic surface tension (DST) measurements is proposed for the study of animal blood plasma or serum and mixtures of proteins, lipids, and salts as model systems. It is found that the saline affects lecithin aqueous dispersions significantly more weakly than those of the proteins. The DST values and biochemical parameters of the bovine blood serum of the same sample are obtained. Correlations between DST values and biochemical parameters of blood serum are found. They are both of fundamental and practical importance in laboratory diagnostics.