Simple, Rapid and Sensitive Method for Determination of Tacrolimus in Human Blood by using Liquid Chromatography / Tandem Mass Spectrometry

Order of Publishing in Issue: 
6
Volume :4
Issue :2
April, 2010 - June, 2010
Page No: 
684-690
Authors: 
Rajaram S. Patil [1]*, Sangita R. Patil [1], Makone. S. S., [1] Chaitanya Krishna, A. [2] and Thirugnanam, P. E.[2]
Address: 
[1] Swami Ramanand Teerth Marathwada University, Nanded, Maharashtra, India
Address: 
[2] Quest life sciences Private Ltd, Chennai, India
Email-ID: 
drrsp1@rediffmail.com

Abstract : A simple, rapid and sensitive method using an isocratic Liquid chromatography coupled with Tandem mass spectrometry was developed andvalidated for the assay of Tacrolimus in the Human Blood. The Mass transition of Tacrolimus and Sirolimus (Internal standard) were M/z 821.7/768.7 and M/Z 931.6/864.6 in ESI Negative ionization. Linearity was observed between the Tacrolimus concentration and the peak area ratiofrom 0.52 to 61.00 ng/mL with r2 value of 0.99. Blood samples containing Tacrolimus were extracted with Zinc sulphate and methanol to precipitate proteins followed by SPE. The observed recovery of Tacrolimus was 66.7 %. The intraday and inter-day accuracy ranged from 91.3 – 110.5% and from 93.9 – 100.6% respectively, at Low, middle and high level concentrations. Themethod will be used in the determination of the pharmacokinetic parameters of Tacrolimus after oral administration of Tacrolimus formulation inhuman blood.
 

Keywords: 
Tacrolimus, LCMS/MS, Human Blood
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