Determination of Lansoprazole in pharmaceutical dosage forms by two different spectroscopic methods |
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Authors: | Ozaltín N |
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Institution: | Department of Analytical Chemistry, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey. |
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Abstract: | Two different ultraviolet (UV) spectroscopic methods were developed for determination of Lansoprazole in pharmaceutical dosage forms. The solutions of the standard and the sample were prepared in 0.1 M NaOH and phosphate buffer pH 6.6. Both UV spectrophotometric and derivative spectroscopic techniques were applied. Second-order derivative spectra were generated between 200 and 400 nm at N = 9, deltalambda = 31.5. The linear range for the UV spectrophotometric method was 3.0-25.0 microg ml(-1) and that for the derivative spectroscopic method was 0.5-25.0 microg ml(-1). The developed methods were applied to three different pharmaceutical preparations. The percentage recovery was 100.2%. |
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