Simultaneous Quantification of Alkanolamines and Their Dehydrogenation Products in Aqueous Samples using High-Performance Liquid Chromatography with Pre-column Derivatization with 2,4-Dinitrofluorobenzene

Diethanolamine, monoethanolamine, iminodiacetic acid, and glycine are important fine chemical intermediates, often requiring simultaneous quantitative analysis in various applications. This presents the challenge of accurately quantifying multiple substances within a single sample. The catalytic dehydrogenation of diethanolamine and monoethanolamine has garnered significant research interest, yet no analytical method has been reported for the simultaneous quantification of reactants and products in the dehydrogenation reaction mixtures of different alkanolamines.