O fra Bernardinu Splićaninu, priređivaču prvog izdanja hrvatskog lekcionara, ponovo!

The use of miniaturised isotachophoresis to allow the simultaneous determination of two inorganic selenium species has been investigated using a poly(methyl methacrylate) chip with a 44-mm-long, 200-μm-wide, 300-μm-deep separation channel. The miniaturised device included an integrated on-column, dual-electrode conductivity detector and was used in conjunction with a hydrodynamic fluid transport system. A simple electrolyte system has been developed which allowed the separation of selenium(IV) and selenium(VI) species to be made in under 210 s. The limits of detection were calculated to be 0.52 mg L−1 for selenium(IV) and 0.65 mg L−1 for selenium(VI). The method allowed the separation of the selenium species from a range of common anions including fluoride, nitrate, nitrite, phosphate, sulfate and sulfite

Application of kinetically labile complex equilibria to the separation of anions by isotachophoresis

The kinetics of complex equilibria are briefly discussed from the viewpoint of their use in isotachophoresis. The possibility of separating some anions on the basis of the kinetically labile complex equilibria was studied and the composition of leading electrolytes suitable for this type of separation is discussed. A successful separation of some anions that differ in their stability constants with Ca2+ illustrates the separation of anions according to stability constants