Journal of Pharmaceutical and Biomedical Analysis 2014-09-01

Liquid chromatography-mass spectrometry analysis of diethylcarbamazine in human plasma for clinical pharmacokinetic studies.

Mark S Schmidt, Christopher L King, Edward K Thomsen, Peter M Siba, Nelly Sanuku, Lawrence Fleckenstein

Index: J. Pharm. Biomed. Anal. 98 , 307-10, (2014)

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Abstract

A sensitive and selective liquid chromatographic method using mass spectrometric detection was developed for the determination of diethylcarbamazine (DEC) in human plasma. DEC and its stable isotope internal standard d3-DEC were extracted from 0.25mL of human plasma using solid phase extraction. Chromatography was performed using a Phenomenex Synergi 4μ Fusion-RP column (2mm×250mm) with gradient elution. The retention time was approximately 4.8min. The assay was linear from 4 to 2200ng/mL. Analysis of quality control samples at 12, 300, and 1700ng/mL (N=15) had interday coefficients of variation of 8.4%, 5.4%, and 6.2%, respectively (N=15). Interday bias results were -2.2%, 6.0%, and 0.8%, respectively. Recovery of DEC from plasma ranged from 84.2% to 90.1%. The method was successfully applied to clinical samples from patients with lymphatic filariasis from a drug-drug interaction study between DEC and albendazole and/or ivermectin. Copyright © 2014 Elsevier B.V. All rights reserved.

Related Compounds

  • Formic Acid
  • Acetonitrile
  • Methanol
  • Diethylcarbamazine...
  • trisodium phosphat...

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