应用FTIR分析硫磺中残留硫化氢及多硫化氢

Analysis of Residual Hydrogen,Sulfide and Hydrogen Polysulfide in Sulfur by FTIR

硫磺中硫化氢（Ｈ２Ｓ）和多硫化氢（Ｈ２ＳＸ）的残留量是硫磺产品质量控制指标之一。介绍了利用傅立叶变换红外光谱仪（ＦＴＩＲ）定量分析硫磺中残留Ｈ２Ｓ和Ｈ２ＳＸ的方法，并对影响分析的主要因素—温度进行了讨论，给出了温度的选择方法。该分析方法简单、快速，且分析范围宽，检测下限低。

The content of residual hydrosen sulfide(H_2S) and hydrogen polysulfide(H2Sx) in sulfur is one of quality-control indexes of sulfur products. The quantitative analysis for residual H2S and H2Sx in sulfur by fourier transformation infra-red(FTIR) spectrum analyzing instrument is reported in this paper, together with the discussion about the chiefinfluencing factor-temperature, and the method to select it. The result shows that this method is simple and quick,and haswide range of measurement and low detectability.