Determination of Lansoprazole in pharmaceutical dosage forms by two different spectroscopic methods.
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%.
Ozaltín
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Department of Analytical Chemistry, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey.
D053799:2-Pyridinylmethylsulfinylbenzimidazoles; D000897:Anti-Ulcer Agents / Q000032:analysis*; D002138:Calibration; D002214:Capsules / Q000737:chemistry; D005069:Evaluation Studies as Topic; D005079:Excipients / Q000737:chemistry; D064747:Lansoprazole; D009853:Omeprazole / Q000031:analogs & derivatives* / Q000032:analysis; D012044:Regression Analysis; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013056:Spectrophotometry, Ultraviolet / Q000191:economics / Q000379:methods*
D053799:2-Pyridinylmethylsulfinylbenzimidazoles; D000897:Anti-Ulcer Agents; D002214:Capsules; D005079:Excipients; D064747:Lansoprazole; D009853:Omeprazole