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Potentiometric determination of alendronate in pharmaceutical formulations
Abstract
A simple, precise, fast and low-cost potentiometric method for alendronate determination in pharmaceutical formulations has been proposed. Alendronate present in tablets at the known concentration was potentiometrically titrated in an aqueous solution using a combined glass electrode coupled with an autotitrator. Determination limit of alendronate was 20.0 mug mL(-1). In the presence of common excipients, such as lactose, microcrystalline cellulose, glucose, croscarmellose sodium, starch, talc, magnesium stearate and titanium dioxide no interferences were observed. The method proposed was validated by determining alendronate in various dosage forms. The average RSD was 0.75%.
How to cite this document
Moreno, A. D.; Pezza, Helena Redigolo; Pezza, Leonardo. Potentiometric determination of alendronate in pharmaceutical formulations. Chemia Analityczna. Warsaw: Instytut Chemii Fizycznej Pan, v. 49, n. 3, p. 351-357, 2004. Available at: <http://hdl.handle.net/11449/39331>.
Language
English
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