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Abstract
Determination of pyrimethamine with n-chlorosuccinimide in acidic medium.
Author(s): HC Dwivedi, IC Shukla
Dept. of Chemistry, University of Allahabad, Allahabad,
Correspondence Address:
H C Dwivedi Dept. of Chemistry, University of Allahabad, Allahabad
Dept. of Chemistry, University of Allahabad, Allahabad,
Correspondence Address:
H C Dwivedi Dept. of Chemistry, University of Allahabad, Allahabad
A new method for the milligram determination of pyrimethamine in pure form and in pharamaceutical preparations has been developed within the accuracy of +/- 1 percent error. Drug samples (1-5 mg) are reacted with excess of N-chlorosuccinimide (NCS) in acidid medium at room temprature (25 degree) for about 15 min. The excess of the reagent is determined iodometrically.
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