发明名称 |
METHOD AND APPARATUS FOR QUANTIFYING OXYGEN |
摘要 |
A method and 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 method of the present invention comprises reacting the oxygen and vapor of yellow phosphorus under a vapor pressure of the yellow phosphorus which is lower than the saturated vapor pressure of the yellow phosphorus at room temperature; and measuring the intensity of light emitted by the reaction. The apparatus of the present invention comprises 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 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. |
申请公布号 |
EP0276858(A3) |
申请公布日期 |
1990.08.22 |
申请号 |
EP19880101253 |
申请日期 |
1988.01.28 |
申请人 |
JAPAN OXYGEN CO., LTD. |
发明人 |
SUZUKI, TAKASHI;AKIYAMA, TERUO |
分类号 |
G01N21/77;G01N21/76;(IPC1-7):G01N21/76 |
主分类号 |
G01N21/77 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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