Works devoted to the determination of organic amines in real water media are usually limited to a small set of analyte components. For example, the quantification of 1,5-pentanediamine, 2-(2-aminoethyl) pyridine, diethylamine, and propylamine in natural waters by capillary electrophoresis with fluorimetric detection after prederivatization with fluorescein isothiocyanate was recommended in [16]. A procedure for determining diethanolamine and methyldiethanolamine in process water with indirect photometric detection was proposed in [14]. A certified procedure for the determination of triethylamine in samples of potable and natural water and wastewater by capillary electrophoresis was described in [17]. Steam distillation according to GOST 31869-2012 (Method B) is used in the sample preparation stage, which unifies sample preparation in the determination of ammonium and triethylamine.