Comprehensive ethoxymer characterization of complex alcohol ethoxy sulphate products by mixed-mode high-performance liquid chromatography coupled to charged aerosol detection

•Comprehensive ethoxymer profiling of AES mixtures achieved by mixed-mode HPLC.•Accurate individual ethoxy sulphate contributions by automatic CAD processing.•Detailed method validation including external NMR comparison.•Extended calculations in order to determine the average molecular weight and degree of ethoxylation of AES products.