Abstract
An isotachophoretic method for the simultaneous determination of anionic surfactants and inorganic electrolytes in aqueous solutions was investigated. This method is based on the pH of leading electrolytes, species of terminating ions, species and concentration of viscous agents.
The optimum conditions for the simultaneous determination were found to be 5 mM HC1-10-2% HPMC/Trishydroxymethylaminomethane (pH 8.5) as the leading electrolyte and 5 mM β-Alanine/KOH (pH 10.4) as the terminating electrolyte. Isotachophoretis also proved quite useful for the simultaneous determination of detergent ingredients.
