Mixtures for modifying surfaces and their applications

摘要

Mixtures of organic amines and carboxylic acids and possibly water and organic solvents are used to alter surfaces, e.g. of stationary phases for chromatography, in such a way that it becomes possible to carry out applications which are otherwise difficult or not possible at all. These applications include, for example, exclusion chromatography and the chromatography of biopolymers such as haemoglobin on dynamically modified silica gel, combined adsorption and exclusion chromatography by means of gradient chromatography and also the chromatography of stereoisomers using asymmetric modifying substances.