Abstract
Abstract A procedure has been developed for the quantitative and qualitative infrared spectrophotometric analysis of phenaglycodol in tablets and capsules. The procedure consists of a liquid-liquid partition of the drug between chloroform and an aqueous alkaline phase. The quantitative measurement is made at about 9.85 μ relative to a carbon disulfide reference, using the baseline technique. Qualitative analysis employs the KBr disk technique. Five collaborators obtained a relative standard deviation of ± 1.88% for a tablet preparation and ± 1.61% for a capsule preparation. It is recommended that the method be adopted as official, first action.
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