Postprint version. Published in Analytica Chimica Acta, Volume 124, Issue 2, March 1, 1981, pages 245-258.
NOTE: At the time of publication, the author Richard Frankel was not yet affiliated with Cal Poly.
The definitive version is available at https://doi.org/10.1016/S0003-2670(01)93571-8.
A new 9-mm (i.d.) inductively-coupled plasma (ICP) torch is described which supports a stable, analytically useful plasma at less than 500 W of r.f. power and 7 l min-1 total argon gas flow. Detection limits, working curves and other analytical characteristics of the new device are compared with those of both a miniature (13-mm i.d.) and conventional (19-mm i.d.) ICP. Although temperatures of the new plasma are somewhat lower than those in the larger plasmas, the new system offers promise for future, miniaturized ICP instruments.
Materials Science and Engineering