Determination of titanium and uranium

This bulletin describes extremely sensitive methods for the determination of titanium and uranium. They are especially suitable for the analysis of ground, drinking, sea, surface and cooling waters, in which the concentration of these elements is of importance. The methods can, of course, also be used for the trace analysis in other matrices. Titanium is determined by adsorptive stripping voltammetry (AdSV) with mandelic acid as complexing agent. The determination limit lies at 0.5 µg/L. Also uranium is determined as chloranilic acid complex with adsorptive stripping voltammetry. Here the determination limit lies in low-chloride media at 50 ng/L, in seawater at 1 µg/L and in high-chloride media in a ppm range, after the chloride has been removed by means of a sulphate-loaded ion exchanger.