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High‐throughput method for the analysis of venlafaxine in pharmaceutical formulations and biological fluids, using a tris(2,2′‐bipyridyl) ruthenium(II)–peroxydisulphate chemiluminescence system in a two‐chip device
Author(s) -
Al Lawati Haider A. J.,
Varma Gouri B.,
Suliman Fakhr Eldin O.
Publication year - 2012
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.2334
Subject(s) - chemiluminescence , relative standard deviation , tris , ruthenium , chemistry , chromatography , pharmaceutical formulation , detection limit , dosage form , standard addition , analytical chemistry (journal) , organic chemistry , biochemistry , catalysis
A simple, rapid and sensitive chemiluminescent (CL) method for the assay of venlafaxine (VEN) in pharmaceutical formulations and serum samples by a two‐chip device is proposed. The method is based on the reaction of this drug with a tris(2,2′‐bipyridyl) ruthenium(II)–peroxydisulphate CL system. The optimum chemical conditions for CL emission were investigated. The calibration graph was linear for the concentration range 0.02–8.0 µg/mL. The detection and quantification limits were found to be 0.006 and 0.018 µg/mL, respectively, while the relative standard deviation (RSD) was <2.0%. The present CL procedure was applied to the determination of VEN in pharmaceutical formulations and serum samples; the recovery levels were in the range 96.5–101.2%. The results suggest that the method is unaffected by the presence of common formulation excipients found in these samples. Copyright © 2012 John Wiley & Sons, Ltd.
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