Lajos Papp and Olivér Bánhidi
A combined electrothermal–hollow cathode emission spectrometric source is described, which is capable of simultaneous multi-element analysis with absolute detection limits lying in the range 10–11–10–12 g (determined for a volume of 10 µl). Details of the electrothermal heating, discharge control and detection power are given, and results of the analysis of water samples are presented.