WATER-COOLED BURNER BASED ON AN INDUCTIVELY-COUPLED PLASMA AS A SOURCE FOR EXCITING SPECTRA

This paper discusses several designs for low-consumption water-cooled plasma burners based on an inductively coupled plasma (ICP) as a sourc e for exciting spectra. The excitation conditions are determined and a nalyzed, along with the reliability and analytical characteristics of ICP sources with these burners as they apply to atomic-emission spectr oscopy. The burner with the best design operates stably with an argon consumption of 4-5 L/min, which is a factor of 2.5-3 less than in ordi nary burners. The resulting detection limits for Cu, Mn, and Zn were a factor of 2-4 better than for ordinary Fassel-type burners on the sam e ICP source. The design of the burners that have been developed makes it possible to install them in most of the commercial ICP sources cur rently available.