Flow-injection spectrophotometric methods for the determination of tenoxicam

Journal of Pharmaceutical and Biomedical Analysis
M S GarcíaM J Gimenez


Two sensitive and rapid flow-injection spectrophotometric methods are proposed for the determination of tenoxicam (TX). In the first method, a Fe(III)-tenoxicam complex is formed in a methanolic medium and the absorbance is measured at 540 nm, while the second method involves measurement of the absorbance at 355 nm of a solution containing the drug in hydrochloric acid medium. In both methods, the peak heights were proportional to tenoxicam concentration over the ranges 7.0-320 and 0.5-8.5 mg/l(-1), respectively. The methods have been applied to the routine determination of the drug in dosage forms.


Mar 24, 1995·Journal of Chromatography. B, Biomedical Applications·J L Mason, G J Hobbs
Jul 2, 1993·Journal of Chromatography·M I Múnera-Jaramillo, S Botero-Garcés

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