Abstract
The detection limits for 38 elements in a low-power (2 kW) oxygen inductively coupled plasma (ICP) are found to be a factor of 10 inferior to those in an argon ICP as reported by winge et al. [ Appl. Spectrosc. 33, 206 (1979)], but better than in an air or nitrogen ICP. A 14-times improvement of the signal-to-background ratio has been achieved in the determination of barium in a CaO powder sample in the oxygen ICP compared to that in the argon ICP.
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