六甲基二硅脲、六甲基二硅胺主含量测定方法

Determination Method for Main Content of BSU & HMN

介绍了两种重要的硅烷化试剂———六甲基二硅脲（ＢＳＵ）和六甲基二硅胺（ＨＭＮ）的主含量测定方法。其中ＢＳＵ是通过化学反应，将其转化生成可以在色谱中气化出峰的硅脂衍生物，再进行色谱法测定。ＨＭＮ是选择了合适的反应物和指示剂，然后进行常规滴定。

This article recommed a determination method on the main content of Bistrimethylsilurea(BSU) and Hexamethyldisilazane(HMN).Through the chemical reaction,the BSU is charged into siliester derivative that are vaporized into peak,so we can determine the main content of BSU by gas chromatography.As to the determination of HMN,the first is selecting the suitable reactor and indicator,and the next is normal titration.