alexa A Sensitive HPLC Method for Determination of Isoniazid in Rat Plasma, Brain, Liver and Kidney | OMICS International | Abstract
ISSN: 2157-7064

Journal of Chromatography & Separation Techniques
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Research Article

A Sensitive HPLC Method for Determination of Isoniazid in Rat Plasma, Brain, Liver and Kidney

Rohit Bhandari and Indu Pal Kaur*

University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh-160014, India

*Corresponding Author:
Dr. Indu Pal Kaur
Professor, University Institute of Pharmaceutical Sciences
Panjab University, Chandigarh, India
Tel: 91-172-2534191
Fax: 91-172-2543101
E-mail: [email protected]

Received date: May 02, 2012; Accepted date: June 16, 2012; Published date: June 18, 2012

Citation: Bhandari R, Kaur IP (2012) A Sensitive HPLC Method for Determination of Isoniazid in Rat Plasma, Brain, Liver and Kidney. J Chromat Separation Techniq 3:128. doi:10.4172/2157-7064.1000128

Copyright: © 2012 Bhandari R, 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.


A simple and rapid reverse phase high performance liquid chromatography (RP-HPLC) method was developed and validated for quantitative determination of Isoniazid (INH) in plasma, brain, liver and kidney samples and in solid lipid nanoparticles (SLNs). Isoniazid was analyzed by using a reverse phase column (Waters, Symmetry shield RP- 18, 4.6 mm x 150 cm, 5 microns), with mobile phase consisting of 0.1 M phosphate buffer, pH 5 (pH adjusted with ortho phosphoric acid) and methanol and the detection was made at 254 nm using Photo Diode Array detector at a temperature of 30°C (sample 4°C). The retention time for INH was around 3.5 minutes. The calibration curves were linear (r2 0.9998) over a concentration range from 250 ng to 25,000 ng/mL. Limit of detection (LOD) was 150 ng/mL and the Limit of quantitation (LOQ) was 200 ng/mL for plasma and tissue homogenates (brain, liver and kidney). Intra and inter-day variability’s (RSD) for extraction of INH from plasma and other tissue homogenates were less than 5% and accuracy was ± 5%. The results established lectivity and suitability of the method for pharmacokinetic studies of INH from INH SLNs.


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