Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1240024 | Spectrochimica Acta Part B: Atomic Spectroscopy | 2011 | 7 Pages |
Abstract
The general method of comparing measured ion ratios to calculated ion ratios to determine a gas kinetic temperature (Tgas) is reviewed. Various mathematical refinements to the calculated partition functions are examined for their effect on the determined Tgas. It is found that (a) excited electronic states should be included for ArO+, neutral NO, and O2; (b) a 10% error in solvent load, sample gas flow rate, vibrational constant (ω), rotational constant (B) or measured ion ratio produces only a 1 to 3% error in Tgas; (c) a 10% error in dissociation energy (D0) creates nearly a 10% error in Tgas; and (d) high temperature corrections to the partition functions produce minimal change and can generally be neglected.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Sally M. McIntyre, Jill Wisnewski Ferguson, Travis M. Witte, R.S. Houk,