Apparatus for quantifying oxygen
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United States of America Patent
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Oct 27, 1992
Issued Date -
N/A
app pub date -
Mar 15, 1991
filing date -
Jan 29, 1987
priority date (Note) -
Expired
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Abstract
An apparatus for measuring the amount of oxygen in a sample gas, which is suited for quantifying small amount of oxygen in a sample gas. The apparatus of the present invention comprises a yellow phosphorus vapor-providing section in which yellow phosphorus is retained, by which the vapor of the yellow phosphorus is supplied and by which the amount of the vapor of the yellow phosphorus is controlled. The apparatus further comprises a reaction chamber connected to the yellow phosphorus vapor-providing section, in which the light-emitting reaction between the oxygen in the sample and the vapor of the yellow phosphorus is conducted, and a sample gas-supplying section. The amount of the oxygen in the sample gas is determined by measuring the intensity of the light emitted by the reaction by a light intensity-measuring device.
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