Abstract
The effect of doping gases on a reduced pressure (1 Torr) microwave-induced helium plasma has been studied. The results show that the quantity of oxygen added as a doping gas Is critical In maximizing the selectivity and sensitivity of the microwave-induced emissive spectrometric detector for the determination of chromium. The addition of approximately 3% O2 maximizes emission from atomic chromium and simultaneously quenches molecular emissions. Possible mechanisms of fragmentation and excitation are given.
Original language | English (US) |
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Pages (from-to) | 2141-2145 |
Number of pages | 5 |
Journal | Analytical Chemistry |
Volume | 47 |
Issue number | 13 |
DOIs | |
State | Published - Nov 1 1975 |
Externally published | Yes |
ASJC Scopus subject areas
- Analytical Chemistry