Journal of Chromatography B 2014-08-15

Simultaneous determination of metformin and vildagliptin in human plasma by a HILIC-MS/MS method.

Roberto Pontarolo, Ana Carolina Gimenez, Thais Martins Guimarães de Francisco, Rômulo Pereira Ribeiro, Flávia Lada Degaut Pontes, João Cleverson Gasparetto

Index: J. Chromatogr. B. Analyt. Technol. Biomed. Life Sci. 965 , 133-41, (2014)

Full Text: HTML

Abstract

The objective of this work was to develop and validate a HILIC-MS/MS method for the simultaneous determination of metformin and vildagliptin in human plasma. Chromatographic separation was achieved using an Atlantis HILIC Silica 150-mm × 2.1-mm, 3-μm particle size column maintained at 40°C. The isocratic mobile phase consisted of 20% water and 80% acetonitrile/water solution 95:5 (v/v), containing both 0.1% formic acid and 3mM ammonium formate. The flow rate was maintained at 400 μL min(-1). Data from validation studies demonstrated that the new method is highly selective, sensitive (limits of detection <1.5 ng mL(-1)) and free of matrix and residual effects. The new method was also precise (RSD<9.0%), accurate (RE<11.2%) and linear (r ≥ 0.99) over the ranges of 5-500 ng mL(-1) for each compound. The developed method was successfully applied to determine metformin and vildagliptin in plasma volunteers who orally received a single dose of metformin (850 mg), vildagliptin (50mg) or drug association (metformin 850 mg+vildagliptin 50mg). The new method can thus also be used as a tool for the clinical monitoring of metformin and vildagliptin.Copyright © 2014 Elsevier B.V. All rights reserved.

Related Compounds

  • Formic Acid
  • Formic acid ammoni...
  • Metformin HCl
  • Pyrantel pamoate

Related Articles:

Neuroprotective effect of modified Chungsimyeolda-tang, a traditional Korean herbal formula, via autophagy induction in models of Parkinson's disease.

2015-01-15

[J. Ethnopharmacol. 159 , 93-101, (2014)]

Biomolecular imaging with a C60-SIMS/MALDI dual ion source hybrid mass spectrometer: instrumentation, matrix enhancement, and single cell analysis.

2014-11-01

[J. Am. Soc. Mass Spectrom. 25(11) , 1897-907, (2014)]

Methionine oxidation accelerates the aggregation and enhances the neurotoxicity of the D178N variant of the human prion protein.

2014-12-01

[Biochim. Biophys. Acta 1842(12 Pt A) , 2345-56, (2014)]

Quantification of furanic derivatives in fortified wines by a highly sensitive and ultrafast analytical strategy based on digitally controlled microextraction by packed sorbent combined with ultrahigh pressure liquid chromatography.

2015-02-13

[J. Chromatogr. A. 1381 , 54-63, (2015)]

Silencing urease: a key evolutionary step that facilitated the adaptation of Yersinia pestis to the flea-borne transmission route.

2014-12-30

[Proc. Natl. Acad. Sci. U. S. A. 111(52) , 18709-14, (2014)]

More Articles...