Tropical Journal of Pharmaceutical Research

Original Research Article | OPEN ACCESS

New highly-sensitive ultra-performance liquid chromatography - mass spectrometry method for quantification of telmisartan in human plasma

Tanveer A Wani¹ , Seema Zargar²

¹Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, PO Box 2457, Riyadh 11451; ²Department of Biochemistry, College of Science, King Saud University, PO Box 22452, Riyadh 11211, Saudi Arabia.

For correspondence:-

Received: 1 November 2014 Accepted: 20 February 2015 Published: 31 March 2015

Citation: Wani TA, Zargar S. New highly-sensitive ultra-performance liquid chromatography - mass spectrometry method for quantification of telmisartan in human plasma. Trop J Pharm Res 2015; 14(3):511-518 doi: 10.4314/tjpr.v14i3.21

© 2015 The authors.
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Abstract

Purpose: To develop and validate a simple, rapid, sensitive and specific ultraperformance liquid chromatography mass spectrometry method for the quantification of the angiotensin II receptor antagonist, telmisartan (TEL), in human plasma.

Methods: After simple protein precipitation using acetonitrile and methanol, TEL and internal standard (IS) abiraterone were separated on Acquity UPLC BEH^TM C18 column (50 x 2.1 mm, i.d. 1.7 µm, Waters, USA) using a mobile phase consisting of acetonitrile: 8 mM ammonium acetate containing 0.15 % formic acid (v/v) (70:30) pumped at a flow rate of 0.3 mL/min and detected by tandem mass spectrometry with positive ion mode. The ion transitions recorded in multiple reaction monitoring mode were m/z 515.27→276.13 for telmisartan and m/z 350.1 > 156.0 for internal standard, abiraterone.

Results: The assay exhibited a linear dynamic range of 1 – 200 ng/mL for telmisartan in human plasma with good correlation coefficient (0.995) and limit of quantitation of 1 ng/mL. The relative standard deviation for the intra- and inter-assay precision was between 0.75-11.50

Conclusion: The developed UPLC-MS/MS method is simple, rapid and highly sensitive, and should thus be suitable for pharmacokinetic and toxicokinetic studies in both animals and humans.

Keywords: Telmisartan, Ultra-Performance liquid chromatography, Tandem mass spectrometry, Pharmacokinetics, Toxicokinetics, High throughput analysis