Simultaneous Determination of Alprazolam and Fluoxetine Hydrochloride in Tablet Formulations by High-Performance Column Liquid Chromatography and High-Performance Thin-Layer Chromatography

Abstract

Abstract This paper describes validated HPLC and HPTLC methods for simultaneous determination of alprazolam (ALP) and fluoxetine hydrochloride (FXT) in pure powder and formulation. The HPLC separation was achieved on a Nucleosil C8 column (150 mm length, 4.6 mm id, 5 m particle size) using acetonitrilephosphate buffer pH 5.5 (45 + 55, v/v) as the mobile phase at a flow rate of 1.0 mL/min at ambient temperature. The HPTLC separation was achieved on an aluminum-backed layer of silica gel 60F254 using acetonetolueneammonia (6.0 + 3.5 + 0.5, v/v/v) as the mobile phase. Quantification in the HPLC method was achieved with UV detection at 230 nm over the concentration range 414 g/mL for both drugs, with mean recovery of 99.95 0.38 and 99.85 0.56 for ALP and FXT, respectively. Quantification in the HPTLC method was achieved with UV detection at 230 nm over the concentration range of 4001400 ng/spot for both drugs, with mean recovery of 99.32 0.45 and 99.78 0.81 for ALP and FXT, respectively. These methods are simple, precise, and sensitive, and they are applicable for the simultaneous determination of ALP and FXT in pure powder and formulations.