Publication: Determination of isoniazid in pharmaceutical preparations by reaction with radiochloramine-B
Date
01-01-1989
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Abstract
A method has been developed for the determination of isoniazid (INH) at microgram level in pharmaceutical preparations based on the oxidation of isoniazid by radiochloramine-B. Interference of vitamin C has been overcome by precipitation as lead ascorbate and that of rifampicin and p-aminosalicylic acid by selective extraction. Amounts as low as 25 μg of INH can be determined. © 1990.
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Keywords
activity measurement, drug analysis., isoniazid, Radiochloramine-B