| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for rapidly and accurately measuring the total amount of oxygen in an analysis sample. SOLUTION: In the analysis method for obtaining the amount of oxygen in an analysis sample by heating the analysis sample in an extraction furnace in an inactive gas atmosphere state after an inactive gas is sent in and unloaded, allowing a carbon source in the extraction furnace to react with oxygen in the analysis sample, unloading carbon monoxide being generated in the extraction furnace from the extraction furnace along with the unloading of the inactive gas, and measuring the unloaded carbon monoxide using a detector such as an infrared absorption analysis device or the like, the feed-in and unloading flow rate of the inactive gas is gradually increased to a specific, maximum flow rate immediately after starting reaction between the carbon source and the oxygen.</p> |
