The temperature of atomic vapor in graphite furnace atomic absorption spectrometry

DOI	Resolve DOI: https://doi.org/10.1016/0584-8547(77)80008-6
Author	Search for: Sturgeon, R. E.; Search for: Chakrabarti, C. L.
Format	Text
Type	Article
Journal title	Spectrochimica Acta Part B: Atomic Spectroscopy
ISSN	0584-8547
Volume	32
Issue	5-6
Pages	231–255
Abstract	The excitation temperature of the atomic vapor arising from analyte atomization in two commercial graphite furnaces was measured by an optical two-line absorption technique. In, Ga, Fe and Sn were employed as thermometric species. Deviations from thermal equilibrium with the graphite walls increase in a roughly linear manner with time, reaching as high as 1300 K before the atomic population is lost. This time-dependent temperature difference is a function of the rate of heating of the atomizer as well as the thermometric species. The influence of a hydrogen diffusion flame in determining excitation temperatures is minimal. Ionization of analyte elements in graphite electrothermal atomizers is negligible, possibly because of the effect of background electrons generated within the furnace.
Publication date	1977
Language	English
Peer reviewed	Yes
NRC publication	This is a non-NRC publication "Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC.
NPARC number	21276863
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Record identifier	6edf230a-f59b-40d6-ab09-f033cd876145
Record created	2015-10-27
Record modified	2020-03-13