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CAPILLARY ELECTROCHROMATOGRAPHY FOR ANALYSIS OF PROTEINS AND METALLOPROTEINASES by Vasudha Salgotra Capillary electrochromatography (CEC) is a hybrid technique of high performance liquid chromatography (HPLC) and capillary electrophoresis (CE), in which stationary phases used in HPLC are chemically bonded to the inner wall of the capillary. In this research, open tubular capillaries have been prepared by etching the inner wall of polyimide coated capillaries. The etching will increase the overall capacity of the capillary. The stationary phases, C5 and CI 8, have been chemically bonded to the etched surface of the capillary utilizing a silanization/hydrosilation procedure. These capillaries were utilized in qualitative analysis of metalloproteins. In order to find out the optimal conditions for the analysis of these proteins, different pH buffers were tested. For comparing and testing the performance of these capillaries, the proteins were also analyzed on a bare capillary. It was determined that C5 and CI8 capillaries gave highly efficient and better reproducible results as compared to a bare capillary.

Capillary electrochromatography for analysis of proteins and metalloproteinases