DSC热分析技术建立结晶有机化合物纯度分析方法的研究

Determination of Purity of Crystallization Organic Compounds by DSC Thermal Analysis Technology

依据范德霍夫方程 ,应用 DSC热分析技术 ,测定结晶有机化合物的纯度 ,方法简便、快速 ,已应用于高密度聚乙烯、聚丙烯产品稳定添加剂及部分药品的纯度测定 ,相对偏差在 0 .0 1%～ 0 .0 3%范围内 ,具有较高的准确度和精密度 。

By Vanthoff equation, the purity of crystallization organic compounds was determined by DSC thermal analysis technology. This method has been used to determine the purity of the stabilizer of HDPE and PP, and the purity of some pharmaceuticals with high accuracy and precision. The range of relative deviation was 0.01 %～0.03 %.