Amer M M, Ahmed A K, Hassan S M
J Pharm Pharmacol. 1977 May;29(5):291-3. doi: 10.1111/j.2042-7158.1977.tb11314.x.
A simple ultraviolet spectrophotometric method for the determination of phenytoin in pharmaceutical preparations has been developed. The mean was 100.9% (6 determinations) and the coefficient of variation was 1.2%. The method was applied successfully to the determination of phenytoin in capsules and suspensions.