August 2011

About Authors: Manoj Kumar Jadia1*, Dr. U. L. Narayan2
1. Department of Pharmaceutical Chemistry,
Indira Gandhi institute of Pharmaceautical Sciences,
IRC village, Bhubaneswar, Odhisa, India
2. Principal, Department of Pharmaceutical Chemistry,
Indira Gandhi institute of Pharmaceautical Sciences,
IRC village, Bhubaneswar, Odhisa, India

Abstract
The two methods are described for the simultaneous determination of Paracetamol and Etodolac in binary mixture. The first method was based on UV-spectrophotometric determination of both of the drugs, using simultaneous equation method. It involves absorbance measurement at 256.0 nm (λmax of Paracetamol) and 226.0 nm (λmax of Etodolac) in methanol; linearity was obtained in the range of 5 – 25 μg.mL-1 for both the drugs. The second method was based on HPLC separation of the two drugs in reverse phase mode using Promosil C18 column. Linearity was obtained in the concentration range of 30-70μg.mL-1 for Paracetamol and 20-60 μg.mL-1 for Etodolac. The LOD and LOQ value of UV-Spectrophotometric determination was found to be 167.43 ng mL-1, 507.37 ng mL-1  and for HPLC determination was found to be 1653.12 ng mL-1, 5009.48 ng mL-1.Both these methods have beensuccessively applied to pharmaceutical formulation and were validated according to ICH guidelines.

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About Authors: Sharath Babu
M.Pharm, Mallareddy Institute of Pharmacy

Liver Enzymes
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