S. Khairnar Nilesh *, K. Redasani Vivekkumar , P. Kotkar Rakesh , B. Bari Sanjay , J. Surana Sanjay
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education & Research, Near Karwand Naka, Shirpur � [425 405] Dist-Dhule, India
Abstract
Two methods, 'UV- Spectrophotometric' and 'First order derivative' methods have been developed for determination of Duloxetine HCl in bulk and in tablets. In Double Reverse osmosis (R.O.) water, Duloxetine HCl showed maximum absorbance at 289 nm and same spectrum was derivatised into first order derivative at Ae = 2; amplitude of the trough was recorded at 275 nm. In both proposed methods Duloxetine HCl follows linearity in the concentration range 10-60 mcg/ml for Simple UV Spectrophotometry&5-30 mcg/ml for first order derivative spectroscopy. Assay results were in good agreement with the label claim. As the percentage relative standard deviations were found to be less than 2, both the methods proved to be precise and accurate.
