Liquid Chromatographic Determination of Azide as the 3,5-Dinitrobenzoyl Derivative

Abstract
A method for the determination of azide after conversion to 3,5-dinitrobenzoyl azide has been developed. The derivatization reaction is fast (3 min.), quantitative, and yields a product with strong ultraviolet absorption. The derivatization reaction mixture is separated by high performance liquid chromatography so that the azide derivative can be easily quantitated. The detection limit of the method is 10 ng NaN3/mL. The total analysis time is 20 minutes per sample.