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Updated: Aug 17, 2026

High-throughput and Comprehensive Drug Surveillance Using Multisegment Injection-Capillary Electrophoresis-Mass Spectrometry
Published on: April 23, 2019
Simultaneous analysis of antiarrhythmic drugs and metabolites by high performance liquid chromatography: interference
Abstract:
Our previously described HPLC method for the simultaneous analysis of several antiarrhythmic drugs and metabolites in serum [Clin. Biochem. 14. 113-118 (1981)] was correlated with an enzyme immunoassay technique (EMIT) for quinidine, procainamide, N-acetyl procainamide, and disopyramide. Correlation coefficients in each case was greater than 0.95. Our method compared favorably with a fluorescent procedure for the quantitation of propranolol in plasma. Interference studies with 34 drugs indicated that the measurements of quinidine and monodealkyldisopyramide were affected by quinine and lidocaine, respectively. Carbamazepine and glutethimide interfered with propranolol, but additional clean-up extractions removed these interferences.
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