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研究了用高频感应炉燃烧红外线吸收法测定硫时,在常用的助熔剂(Fe+W)中加入硒对硫测定的影响。结果表明,加入硒不但提高了硫的测定准确度,还扩大了硫的测定线性范围,特别是对低硫的测定其效果更加显著。
The influence of adding selenium to the common flux (Fe + W) on the determination of sulfur when using infrared absorption method to measure sulfur by high frequency induction furnace was studied. The results show that the addition of selenium not only improves the determination accuracy of sulfur, but also expands the linear range of sulfur determination, especially for the determination of low sulfur.