Abstract
A kinetic method for the accurate and sensitive determination of famotidine has been described. The method is based on the alkaline oxidation of famotidine with potassium permanganate at a fixed time of 10 min. The formed manganate ion is measured at 610 nm. The concentration of famotidine is calculated using the calibration equation for the fixed time method. Beer's law was obeyed in the range of 1–10 μg/mL and the R.S.D. (n = 10) was 0.47%. The method has been applied successfully to commercial tablet dosage form.
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