This research work was carried out to find the optimum conditions for
anodic sampling of steels, aluminium alloys, brass etc. It was found u
sing electrolyte: the water solution of ammon-nitrat (1 g/l) and hydro
chloric acid (conc.) in volume ratio 1:1, give the best results if the
duration of electrochemical process was 45 s and D.C. current was 4.5
V The elements which are sampled were datected by thin layer chromato
graphy and optical emission spectrometry.