Journal of Analytical & Bioanalytical Techniques
Open Access

Abstract

Olanzapine (OZP) is a selective monoaminergic antagonist with high binding affinity to serotonin, dopamine and muscarinic receptors. It has been proposed that this drug?s efficacy in schizophrenia is mediated through a combination of dopamine and serotonin type 2 antagonism. A new method based on three-phase hollow-fiber liquid phase micro-extraction combined with high performance liquid chromatography with UV detection (HF-LPME-HPLC-UV) was used for the extraction, pre- concentration and determination of OZP in urine and plasma samples. Experimental parameters which control extraction efficiency, such as type of organic solvent, pH of donor and acceptor phase, ionic strength of the sample, stirring rate, extraction temperature and extraction time were studied. The limit of detection and relative standard deviation (n=5) of the method were 2 ngmL -1 and 2.1%. Under the optimized conditions, enrichment factors up to 110 were achieved. Olanzapine was successfully determined in urine and plasma samples without any significant matrix effect.

Biography

Mahnaz Qomi has done Ph.D. in analytical chemistry from Research and Sciences of Islamic Azad University, Tehran, Iran. She is an assistant professor for 5 years in Pharmaceutical Sciences Branch of Islamic Azad University, Tehran, Iran. She is a researcher manager in the Pharmaceutical Sciences Research Center at this university with more than 8 published papers in reputed journals.