SIMULTANEOUS ESTIMATION OF ASPIRIN AND OMEPRAZOLE IN LABORATORY SAMPLE BY DIFFERENT UV SPECTROPHOTOMETRIC TECHNIQUES
Journal: Indian Drugs (Vol.57, No. 09)Publication Date: 2020-09-28
Authors : Wani Rakesh M; Kashid Arun M; Amita Ghatge; Sumita Sahoo;
Page : 75-81
Keywords : * For Correspondence Email: arunkashid2006@gmail.com;
Abstract
The aim of the present work was to develop simple, precise and economic UV- spectrophotometric methods for the simultaneous estimation of aspirin and omeprazole in a laboratory sample. The absorbance maxima (λmax) for detection of aspirin and omeprazole were selected as 274 nm and 302 nm, respectively, for simultaneous equation method while wavelength range for detection of aspirin and omeprazole were selected as 270 nm - 276 nm and 300 nm - 305 nm, respectively for area under curve method. Absorbance ratio method uses the ratio of absorbances at two selected wavelengths, one which is an isoabsorptive point and other being the λ max of one of the two components. From the overlay spectra of two drugs, it is evident that aspirin and omeprazole show an isoabsorptive point at 238.6 nm. In zero crossing first derivative spectrophotometry, aspirin showed zero crossing point at 301nm and omeprazole showed zero crossing point at 274nm. Linearity for aspirin was between 25- 125 μg/mL and omeprazole it was 3-15 μg/mL. These methods were successfully applied for estimation of aspirin and omeprazole in the laboratory sample.
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