Development and validation of new colorimetric method for the estimation of oxybutynin chloride in bulk and dosage form
ABSTRACT:
An extractive colorimetric method has been developed for
estimation of Oxybutynin chloride in its tablet form. Bromothymol blue
indicator was used as the coloring agent, and a straw yellow color solution was
formed in the presence of acidic medium after extracting the drug with
chloroform. The solution absorbance was measured at 414 nm. The linearity range
was in the range of 2.5-12.5 µg/ml. The validation of the new proposed method
was carried out on various parameters like linearity, accuracy, precision,
selectivity, specificity, robustness, and ruggedness, LOD, LOQ.
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