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 Research Article Open Access 
Simple and Validated Method for Estimation of Amlodipine by LC-MS (ESI) Using Healthy Indian Human Volunteers: and Evaluation of Pharmacokinetic Parameters
Moses Prince Francis*, Selvadurai Muralidharan, Sekar Rajan, Nagarajan and Bhojraj Suresh
Department of Pharmaceutical Analysis, J.S.S.College of Pharmacy, Rocklands Ooty, Tamilnadu, India
*Corresponding author: Dr. Moses Prince Francis,
Department of Pharmaceutical Analysis,
J.S.S.College of Pharmacy,
Rocklands Ooty,
Tamilnadu, India
E-mail: [email protected]
 
Received April 17, 2010; Accepted June 26, 2010; Published June 26, 2010
Citation: Moses PF, Muralidharan S, Rajan S, Nagarajan, Suresh B (2010) Simple and Validated Method for Estimation of Amlodipine by LC-MS (ESI) Using Healthy Indian Human Volunteers: and Evaluation of Pharmacokinetic Parameters. J Bioanal Biomed 2: 069-074. doi: 10.4172/1948-593X.1000025
 
Copyright: © 2010 Moses PF, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
 
Abstract
A simple and validated liquid chromatographic–mass spectrometric method (LC-MS) for amlodipine in human plasma was quantifi ed using LC-MS (ESI). Chromatography was performed on a C18 analytical column, the mobile phase used was Acetonitrile-10mM Ammonium acetate in the ratio of 90:10%v/v and the retention times were 0.829 and 1.281 min for azithromycin (Internal standard) and amlodipine respectively. The ionization was optimized using ESI (+) and enhanced selectivity was achieved. The method is validated as per FDA guidelines. The analyte was shown to be stable over the timescale of the whole procedure. The pharmacokinetic parameters such as peak plasma concentration (Cmax), Time to peak Concentration (tmax), Area under the plasma concentration-time curve (AUC0-t & AUC0-∞), elimination rate constant (Keli), Elimination half-life (t½) were calculated. Log transferred values were compared by Analysis of Variance (ANOVA) followed by classical 90% confidence interval for Cmax AUC0-t.and AUC0-∞ and was found to be within the range. These results indicated that the Test and Reference formulation is bioequivalent.
 
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