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本文通过使用硝酸-硝酸银-聚乙烯醇-乙醇溶液,将环境气体中的砷化氢吸收,反应生成砷酸。应用原子发射光谱法测定溶液中的砷元素,计算后可得到环境气体中的砷化氢含量。经过验证,该方法具有检出限低、稳定性好、动态线性范围宽的优点,可以满足不同环境检测的需要。
In this paper, the use of nitric acid - silver nitrate - polyvinyl alcohol - ethanol solution, the ambient gas absorption of arsine, the reaction of arsenic acid. Determination of arsenic in solution by atomic emission spectrometry, calculated after the arsine content of the ambient gas. After verification, the method has the advantages of low detection limit, good stability and wide dynamic linear range, which can meet the needs of different environmental testing.