| 摘要 |
PURPOSE:To perform analysis for a shorter time and with higher accuracy by a method wherein a mixture of particulate carbon and particulate carbon compounds is moved from a pyrolysis region to an oxidizing region for analysis. CONSTITUTION:When a sample 10 is placed in a pyrolysis region 23 while being suspended on an insertion rod 16 as shown by a phantom line 33, the volatile component in the sample 10 is volatilized and passed into an oxidizing region 24 together with nitrogen gas, where it reacts with oxygen gas under the action of an oxidized catalyzer 15 to produce first carbon dioxide gas. This gas is introduced into a non-dispersion type infrared analyzer 27 through a reaction gas channel 25 and a reaction gas supply tube 26 for measurement of quantity thereof. Then, when the insertion rod 16 is moved downward and the sample 10 is placed in the oxidizing region 24 as shown by solid lines, the non- volatile component of the sample reacts with oxygen gas under the action of the oxidized catalyzer 15 to produce second carbon dioxide gas. In a similar manner as above, this gas is also measured in quantity thereof using the analyzer 27. |
