氧弹燃烧灰化分光光度法测定有机物中的硅

Determination of Silicon in Organic Substance by Oxygen Bomb Combustion and Spectrophotometry

采用氧弹燃烧灰化进行样品预处理 ,亚铁还原硅钼蓝分光光度法测定有机物中微量硅。通过试样分析和回收率实验 ,结果表明 ,方法的回收率为 95 %— 10 2 % ,可用于有机样品中硅的定量测定。

The micro silicon in organic substance was pretreated by oxygen bomb combustion,reduced by ferocyanide and then determined by spectrophotometry with silicon molybdenum-blue.The recovery is in the ranges of 95%-102% with standard addition method.The method can be applied to the determination of silicon in organic substance.