Stereospecific high-performance liquid chromatographic determination of tocainide.

R A Carr, R T Foster, D Freitag, F M Pasutto

文献索引：J. Chromatogr. A. 566(1) , 155-62, (1991)

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摘要

A sensitive high-performance liquid chromatographic assay was developed for the determination of tocainide enantiomers in plasma. Following extraction of tocainide from plasma, the enantiomers were derivatized with S-(+)-1-(1-naphthyl)ethylisocyanate. The resulting diastereomers were separated and quantified using normal-phase chromatography with fluorescence detection set at 220/345 nm (excitation/emission). The peaks, resolved with a resolution factor greater than 1.5, were free from interference. Linearity was established over the concentration range 0.25-10.0 mg/l for each enantiomer in plasma (r2 greater than 0.998). The inter-assay variability was less than 10% at all concentrations examined. The method can be used to determine the pharmacokinetics of tocainide enantiomers in man.

相关化合物

  • 异氰酸(R)-(-)-1-(...

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