Spectrophotometric -Reverse Flow Injection Method for the Determination of Tenoxicam in Pharmaceutical Tablets

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Hussein Mhdi Allaa; Subhi Abed Sadeem

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Journal Paper

Paper Information

Journal: Chemical Methodologies Year:2023 | Volume:7 | Issue:6 Page(s): 435-446

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Information Journal Paper

Title

Spectrophotometric -Reverse Flow Injection Method for the Determination of Tenoxicam in Pharmaceutical Tablets

Author(s)

Hussein Mhdi Allaa | Subhi Abed Sadeem | Issue Writer Certificate

Keywords

Calibration curve

Metol Reagent

Reverse flow injection analysis

Tenoxicam

Charge transfer

Abstract

In this study, reversed flow injection analysis (rFIA) spectrophotometric method was used for determination of Tenoxicam (TNX) in pure and pharmaceutical forms. This method was based on the Charge transfer interaction of TNX with 0.005 M of Metol Reagent (MFS) in the presence of 0.02 M of potassium persulfate as oxidant agent. Color product was formed give absorbance measured at λmax=530 nm with ratio 2:1. All optimum physical and chemical conditions were studied. Linearity of TNX was observed at the range of 2-140 µg.mL-1 and the detection limit was 1.393. However, quantitation limit was 4.643 µg.mL-1. The method offered correlation coefficient, (r:0.9997) in rFIA applied for TNX pharmaceutical tablets give good values, by the comparison between rFIA results and UV results, using the standard addition method taken 20 µg/ml amount for one concentration of Tenoxicam give accurate quantitation of drug, the rFIA, the best analysis and the suggested method could be utilized for pharmaceutical analysis.

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