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Chromatographia

, Volume 71, Issue 3–4, pp 273–277 | Cite as

Direct Injection of Plasma Samples and Micellar Chromatography of Procainamide and Its Metabolite N-Acetylprocainamide

  • Josep Esteve-Romero
  • Adria Martinavarro-Domínguez
  • José V. Marcos-Tomás
  • Enrique Ochoa-Aranda
  • Maria Rambla-Alegre
Full Short Communication

Abstract

Micellar liquid chromatography was employed for the monitoring of procainamide and its metabolite N-acetylprocainamide using a C18 column. Sodium dodecyl sulphate (SDS) and modifier concentrations were optimised in order to obtain minimum analysis time, maximum sensitivity and good resolution. The optimum chromatographic conditions were as follows: flow rate 1 mL min−1, injection volume 20 μL, temperature at 25 °C, respectively. The mobile phase consisted of 0.05 M SDS-1% (v/v) butanol–phosphate buffer (10 mM, pH 7, 0.9%, w/v) NaCl using a detection wavelength at 280 nm. Validation studies were carried out according to the ICH guideline and included the determination of calibration curves (r 2 > 0.999), intra- and inter-day precisions (CV < 3.9%), robustness and interference studies, respectively. The recoveries in spiked serum samples were adjusted. Finally, the optimized method was applied to serum samples of patients treated with antiarrhythmics, and the results were compared with those given by a reference method where a good correlation was obtained.

Keywords

Micellar liquid chromatography Direct injection Monitoring Procainamide N-Acetylprocainamide 

Notes

Acknowledgments

This study was part of Project P1-1B2006-12 funded by Fundació Caixa Castelló-Bancaixa-Universitat Jaume I, and CTQ2007-64473/BQU of the Ministry of Education and Science (MEC). We also wish to thank to this foundation, which has also supported the research grants of Devasish Bose. Maria Rambla-Alegre also wishes to thank the MEC for the FPU grant. Finally, we are grateful to the Council of Scientific and Industrial Research of New Delhi.

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Copyright information

© Vieweg+Teubner | GWV Fachverlage GmbH 2010

Authors and Affiliations

  • Josep Esteve-Romero
    • 1
  • Adria Martinavarro-Domínguez
    • 2
  • José V. Marcos-Tomás
    • 3
  • Enrique Ochoa-Aranda
    • 2
  • Maria Rambla-Alegre
    • 1
  1. 1.Àrea de Química Analítica, QFAUniversitat Jaume ICastellóSpain
  2. 2.Servei Anàlisis ClíniquesHospital ProvincialCastellóSpain
  3. 3.Servei Anàlisis ClíniquesHospital Verge dels LlirisAlcoiSpain

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