Analytical Problems Encountered During High-Performance Liquid Chromatographic Separation and Coulometric Detection of Bopindolol Metabolites in Human Plasma

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Abstract
Good clinical control of hypertension is achieved with low doses of the potent beta-blocker bopindolol. Pharmacokinetic evaluations therefore require an analytical technique of high sensitivity. Analysis of plasma by high-performance liquid chromatography (HPLC) using electrochemical detection provides this sensitivity. This article describes the development of an analytical procedure and presents a reversed-phase HPLC method with coulometric detection suitable for plasma analyses during pharmacokinetic investigations of bopindolol therapy.