Polarography of rare earth elements

The polarographic properties of rare earth elements are described whose reduction proceeds in two steps. Half-wave potentials of most rare earth elements range within -1.7 and -2.0 V. A detailed description is presented of the determination of europium, samarium, ytterbium and cerium and other elements. Tabulated are examples of the determination of individual rare earth elements. (E.S.). 1 tab., 82 refs