Oxygen in the high-temperature graphite furnace

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DOIResolve DOI: http://doi.org/10.1016/0584-8547(84)80029-4
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Journal titleSpectrochimica Acta. Part B, Atomic Spectroscopy
Pages213224; # of pages: 12
AbstractPhotometric measurements of the partial pressure of oxygen in the graphite furnace have been made utilizing a sensitive and selective chemiluminescent reaction with phosphorus vapor. Oxygen is present many orders of magnitude in excess of equilibrium pressures expected from a consideration of the reaction: 2C + O2 → 2CO. Reactivity of the graphite substrate is the prime mediator in controlling the partial pressure of oxygen. An equally efficient scavenging of oxygen in a tantalum tube furnace was also noted. The implications of these observations for the interpretation of atomization mechanisms are discussed.
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AffiliationNational Research Council Canada
Peer reviewedNo
NRC number1223
NPARC number8899599
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Record identifier3af9b91d-428f-4255-ac94-e4244aec3f21
Record created2009-04-22
Record modified2016-05-09
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