Spectrophotometric Determination of Diphenylamine in Ext. D&amp;C Yellow No. 1

Name: Work Video:
Duration: 3 min 30 s
Description: Abstract A separatory funnel procedure is presented that separates diphenylamine (DPA) from Ext. D&amp;C Yellow No. 1. The DPA is extracted from the color with isooctane and the amount of DPA is determined spectrophotometrically. Recoveries of 0.02–1 % added DPA ranged from 95.5 to 104%.
John Dantzman
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