基本信息
摘要：To measure oxygen, nitrogen or hydrogen in a sample containing sulfur with high reliability.SOLUTION: A method for measuring oxygen, nitrogen or hydrogen in a solid sample includes: a process of heating the solid sample in the presence of first desulfurization agent composed of metal capable of generating sulfide, removing sulfur in the solid sample as a sulfide of the first desulfurization agent, and generating gas containing oxygen, nitrogen or hydrogen in the solid sample; a process of making the generated gas pass through a filling pipe filled with second desulfurization agent composed of metal capable of generating the sulfide, and heated at 600°C or more and 750°C or less, and removing residual sulfur contained in the gas as a sulfide of the second desulfurization agent; and a process of measuring oxygen, nitrogen or hydrogen contained in the gas which has passed through the filling tube.SELECTED DRAWING: Figure 4 【課題】硫黄を含有する試料中の酸素、窒素及び水素の定量を高信頼性をもって行うこと。【解決手段】本発明の固体試料中の酸素、窒素又は水素の定量方法は、硫化物の生成が可能な金属からなる第１の脱硫剤の共存下に固体試料を加熱して、該固体試料中の硫黄を第１の脱硫剤の硫化物として除去するとともに、該固体試料中の酸素、窒素又は水素を含むガスを発生させる工程と、発生した前記ガスを、硫化物の生成が可能な金属からなる第２の脱硫剤が充填され且つ６００℃以上７５０℃以下に加熱された充填管に通して、該ガス中に含まれる残余の硫黄を第２の脱硫剤の硫化物として除去する工程と、前記充填管を通過したガス中に含まれる酸素、窒素又は水素を定量する工程と、を含む。【選択図】図４
摘要附图：
