Liquid chromatography–mass spectrometry method for the analysis of 1,4-dimethylpyridinium in rat plasma – application to pharmacokinetic studies
Version of Record online: 30 APR 2012
Copyright © 2012 John Wiley & Sons, Ltd.
Volume 27, Issue 1, pages 73–79, January 2013
How to Cite
Szafarz, M., Szymura-Oleksiak, J., Zakrzewska, A., Walczak, M., Kus, K. and Gonciarz, A. (2013), Liquid chromatography–mass spectrometry method for the analysis of 1,4-dimethylpyridinium in rat plasma – application to pharmacokinetic studies. Biomed. Chromatogr., 27: 73–79. doi: 10.1002/bmc.2750
- Issue online: 13 DEC 2012
- Version of Record online: 30 APR 2012
- Manuscript Revised: 22 MAR 2012
- Manuscript Accepted: 22 MAR 2012
- Manuscript Received: 5 JAN 2012
- column liquid chromatography;
- tandem MS detection;
- rats plasma;
- 1,4-DMP compound
A sensitive and specific liquid chromatography electrospray ionization–mass spectrometry method for determination of 1,4-dimethylpyridinium (1,4-DMP) in rat plasma has been developed and validated. Chromatography was performed on an Aquasil C18 analytical column (4.6 × 150 mm, 5 µm, Thermo Scientific, Rockford, IL, USA) with isocratic elution using a mobile phase containing acetonitrile and water with an addition of 0.1% of formic acid. Detection was achieved by an Applied Biosystems MDS Sciex (Concord, Ontario, Canada) API 2000 triple quadrupole mass spectrometer. Electrospray ionization was used for ion production. The limit of detection in the single ion monitoring mode was found to be 10 ng/mL. The limit of quantification was 50 ng/mL. The precision and accuracy for both within-day and between-day determination of 1,4-dimethylpyridinium was 2.4–7.56 and 90.93–111.48%. The results of this analytical method validation allow pharmacokinetic studies to be carried out in rats. The method was used for the pilot study of the pharmacokinetic behavior of 1,4-DMP in rats after intravenous administration. Copyright © 2012 John Wiley & Sons, Ltd.