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1 2009

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Development and validation of a stability-indicating LC-UV method for rapid analysis of buspirone in pharmaceutical dosage forms

Azeem A., Rizwan M., Ahmad F. J., Iqbal Z., Khar R. K., Aqil M, Talegaonkar S.

Acta Chromatographica

2009

Vol. 21, no. 2

283--297

An accurate, sensitive, precise, rapid and isocratic reversed-phase HPLC (RPHPLC) method for analysis of buspirone in the bulk drug and in solid dosage formulations has been developed and validated. The best separation was achieved on a 250 mm × 4.6 mm i.d., 5-μm particle, RP C 18 column with 70:30 ( υ/υ ) methanol-0.01 M sodium dihydrogen phosphate buffer (pH 3.5) as mobile phase at a flow rate of 0.8 mL min -1. UV detection was at 244 nm. Response was a linear function of concentration over the range 0.05–20 μg mL -1 ( r = 0.9998) and the limits of detection and quantitation were 3.7 and 11.3 ng mL -1, respectively. The method was validated in accordance with ICH guidelines. The drug was subjected to oxidative, hydrolytic, photolytic, and thermal stress. Degradation products produced as a result of this stress did not interfere with detection of buspirone and the assay can thus be regarded as stability-indicating. The method was used for quantification of buspirone in commercial buspirone tablets and to check content uniformity. The excipients present in the formulation did not interfere with the assay. The method is suitable for application in quality-control laboratories, because it is simple and rapid with good accuracy and precision.