Analysis of Rituximab, A Therapeutic Monoclonal Antibody by Capillary Zone Electrophoresis

Monoclonal Antibody Charge Heterogeneity Analysis by Capillary Isoelectric Focusing on the Agilent 7100 Capillary Electrophoresis System

Due to the importance of monoclonal antibodies (mAb) as therapeutic agents, there is a growing demand for high resolution analytical methods to characterize these complex molecules. One important property of an mAb is its charge state that may change during and after manufacturing. A very useful technique to measure mAb charge heterogeneity is capillary isoelectric focusing (cIEF). This Applica...

Analysis of illicit amphetamine seizures by capillary zone electrophoresis.

Capillary zone electrophoresis was applied for the determination of amphetamine and related substances in seized drugs. A buffer made of 0.1 M phosphoric acid adjusted to pH 3.0 with triethanolamine was selected. With this background electrolyte, triethanolamine is adsorbed to the capillary wall and the electroosmotic flow is reversed. This gives rise to peaks with good symmetry, high efficienc...

Analysis of micafungin in serum by capillary zone electrophoresis.

A method is developed for measuring the concentration of micafungin, an echinocandin antifungal agent, in serum, using capillary zone electrophoresis. With a 0.1M borate buffer (pH 10.0) as the run buffer, detection is carried out at 200 nm. Pretreatment is performed by adding acetonitrile to serum (1:2) for deproteinization, allowing the supernatant fluid to be taken for measurement. The detec...

Determination of Varenicline by Capillary Zone Electrophoresis

HASSAN A ALHAZMI, HAFIZ A MAKEEN, SAMI EL DEEB Department of Pharmaceutical Chemistry, College of pharmacy, Jazan University, P.O. Box 114, Jazan 45142, Saudi Arabia. Department of Clinical Pharmacy, College of pharmacy, Jazan University, P.O. Box 114, Jazan 45142, Saudi Arabia. Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany Department of Pharmaceutical Chemistry, Al-Azhar Uni...

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