高频红外碳硫分析仪测定地质样品中不同含量的硫

Determination of the Different Content of Sulfur in Geological Samples by High Frequency IR Carbon-sulfur Analyzer

采用铁粉为助燃剂,三氧化钼为基体改进剂,分段建立工作曲线,高频红外碳硫分析仪测定硫,实验基体改进剂的效果,探讨干燥剂及工作曲线的影响。其方法硫的检出限为0.000 47%,实验方法在低硫和高硫的精密度和准确度,并进行不同方法的对比实验。实验结果表明,该方法性能参数良好,能满足地质样品中不同含量硫的分析测试工作的要求。

Using iron powder as combustion supporting agent and molybdenum trioxide as matrix modifier, building the working curves, the content of sulfur is determined by high frequen- cy IR carbon-sulfur analyzer, which tested the effect of matrix modifier and discussed the in- fluence of the desiccant and curves. The detection limit of sulfur is 0. 00047%. Comparative experiments of different methods are for the precision and accuracy of low and high sul- fur. The experiments prove that performance parameters of the method is good, and can meet the needs of different sulfur content in geological samples analysis testing requirements.