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INTERNATIONAL JOURNAL OF PHARMACEUTICAL RESEARCH AND DEVELOPMENT
IJPRD
October - 2009 / Volume - 1/Issue -8
( Total Articles =10 )
Article No 1
October -2009 / Volume - 1 /Issue - 8/ Article No - 1 / Research Article
DEVELOPMENT AND VALIDATION OF DERIVATIVE SPECTROPHOTOMETRIC METHOD FOR DETERMINATION OF ENTACAPONE IN PHARMACEUTICAL FORMULATION
Shailesh K. Koradia*1, Ashwin S. Agola2,
Nurudin P. Jivani1, Ravi A. Manek1 and
Shivanand Pandey1
Mr.Shailesh Koradia
1Smt. R. B. Patel Mahila Pharmacy College, Atkot, Rajkot, Gujarat, INDIA.
2N. R. Vekariya Pharmacy College, Junagadh, Gujarat, INDIA.
Email ID: shailesh_koradia@yahoo.com
ABSTRACT
A rapid, precise, accurate and specific first-order derivative spectrophotometric method was developed for the determination of Entacapone in pharmaceutical formulation. The technique was applied using 0.01M NaOH as diluent. The first-order derivative spectra were obtained at N = 10, ?l = 4.0 nm, and determination were made at 375.0 nm. The method showed high specificity in the presence of formulation excipients and good linearity in the concentration range of 2-25 µg/mL with correlation coefficient 0.9964. The detection limit and quantitation limit were found to be 0.42 µg/mL and 1.28 µg/mL, respectively. The recovery ranged between 96.11 and 100.61%. The proposed method is easy to apply, low-cost, does not use polluting reagents and require relatively inexpensive instruments.
Key words: Entacapone, first-order derivative, method validation, tablets