Sodium Ion Effect on Separation Of Butyrylcholinesterase from Plasma by Ion-Exchange Chromatography.

Unlabelled: Purpose of the paper was the optimization of mobile phase in natrium chloride gradient in the chromatographic separation of butyrylcholinesterase from human plasma.

Materials/methods: Butyrylcholinesterase (BuChE) was isolated from human plasma using a diethylamminoethyl-cellulose column, by elution with 0.02M acetate buffer pH=4.

Immune response to Escherichia coli antigens entrapped in liposomes. I. Immunopathological studies.

In this study, we have searched for an effective mucosal delivery system for a purified E. coli antigen which elicits anticolonization and anti-toxic immunity. E.