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Quantitative analysis of monoclonal antibodies by cation-exchange chromatofocusing.

Journal of chromatography. A (2009-06-30)
Anna Rozhkova
ZUSAMMENFASSUNG

A robust cation-exchange chromatofocusing method was developed for the routine analysis of a recombinant humanized monoclonal IgG antibody. We compare the chromatofocusing method to the conventional cation-exchange chromatography (CEX) employing a salt gradient and show clear advantages of chromatofocusing over CEX. We demonstrate the suitability of the present chromatofocusing method for its intended purpose by testing the validation characteristics. To our knowledge, this is the first chromatofocusing method developed for the routine analysis of monoclonal antibody charge species.

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Sigma-Aldrich
Carboxypeptidase B aus Schweinepankreas, lyophilized powder
Sigma-Aldrich
Carboxypeptidase B aus meschlichem Pankreas, 50-55 units/mg protein carboxypeptidase B