Spectral analysis of geologic samples with using double-jet plasmatron

The method of quantitative spectral analysis of Ti, Cr, Ni, Bi V, Zr, Nb, Mo, Sn, Ce, Y, Yb, La, Be, Se, Co Sb, Pb, Mn, Ga in geologic samples the composition of which is complex and difficult to control (rocks, ores and minerals) using plasma jet of double-jet plasmotron as an eight source is given. The detection limit is nx10-5-nx10-7%. It is revealed the influence of analysed matter composition of the analysis results is not significant in plasma jet so it is possible to analyse samples complex in composition by the same standards. Dispersional analysis of resuultant products by the worked out method demonstrated that the error in plasma jet caused by uncontrolled changes in composition is 2-3 relative percents that 7-10 times lesser in comparison with the alternating current arc