Liquid chromatography-tandem mass spectrometric assay for diclofenac and three primary metabolites in mouse plasma

62Citations
Citations of this article
49Readers
Mendeley users who have this article in their library.
Get full text

Abstract

The first liquid chromatography-tandem mass spectrometric assay for the simultaneous determination of diclofenac, 4′-hydroxy-diclofenac, 5-hydroxy-diclofenac and diclofenac-acyl-glucuronide in mouse plasma, using a simple sample pre-treatment procedure, was developed and validated. Analytes in plasma were stabilized using acetic acid and ascorbic acid. After addition of the internal standard D4-diclofenac to a 10 μl sample volume and protein precipitation with acetonitrile, the supernatant was supplemented with an equal volume of water and injected into the chromatographic system. A polar embedded reversed-phase column with gradient elution using formic acid and ammonium acetate in water-methanol were used. The eluate was totally transfered into an electrospray interface with positive ionization and the analytes were quantified using triple quadrupole mass spectrometry. The assay was validated in the ranges 10-5000 ng/ml for 4′-hydroxy-diclofenac and 20-10,000 ng/ml for the other analytes, the lowest levels of these ranges (10 or 20 ng/ml) being the lower limits of quantification. Within day precisions were ≤10%, between day precisions ≤13% and accuracies were between 90 and 108%. The analytes were chemically stable under all relevant conditions. The assay was successfully applied in a pharmacokinetic study with diclofenac in mice. © 2008 Elsevier B.V. All rights reserved.

Cite

CITATION STYLE

APA

Sparidans, R. W., Lagas, J. S., Schinkel, A. H., Schellens, J. H. M., & Beijnen, J. H. (2008). Liquid chromatography-tandem mass spectrometric assay for diclofenac and three primary metabolites in mouse plasma. Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences, 872(1–2), 77–82. https://doi.org/10.1016/j.jchromb.2008.07.012

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free