Isotachophoretic determination of anionic and cationic species in well and surface waters

Electromigration techniques as a modern tool to control the work of sewage treatment plant

“…The method allows to separate Fe 2+ , Cu 2+ , Ni 2+ , Cd 2+ , Zn 2+ simultaneously [3,6]. In analysed sewage nickel was always detected at concentrations not exceeding norm (2.0 mg Ni/L).…”

Determination of nitrite and nitrate in a proposed certified reference material for nutrients in seawater by capillary zone electrophoresis with artificial seawater as the background electrolyte using transient isotachophoresis

“…Sample, vacuum injection period, and other symbols as in Fig. 1 [29]. Therefore, sulfate could act as the terminating ion.…”

Application of isotachophoresis in food analysis

“…Several optimization approaches to the separation of these cations have been published. Authors used various counter-or co-counterions with complexing ability to achieve a separation of cations determined in well water [17], sugar, starch, and their products [18,19], and drinking or mineral water [20]. These approaches are, however, not efficient for the separation of ammonium and potassium.…”

“…Such an arrangement [27] used in water analysis enabled the determination of macroconstituents (nitrate, sulfate) in the preseparation and microconstituents (nitrite, fluoride, phosphate) in the analytical capillary. The simultaneous determination of chloride, nitrate and sulfate was reported by Vacík and Muselasovµ [17]. Unfortunately, the reaction of calcium hydroxide used as leading electrolyte with carbon dioxide causes rather low robustness of this system, which is probably unsuitable for routine analysis.…”