Spectrophotometric Determination of Diphenylamine in Ext. D&C Yellow No. 1
作者
John Dantzman
出处
期刊：Journal - Association of Official Analytical Chemists [Oxford University Press] 日期：1976-07-01卷期号：59 (4): 846-848
标识
DOI：10.1093/jaoac/59.4.846
摘要
Abstract A separatory funnel procedure is presented that separates diphenylamine (DPA) from Ext. D&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%.
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