气相色谱法测定多聚甲醛生产中的中间产物及产品中的甲醇

Determination of Methnol in Intermediate Compound and the Product in the Process of Paraformaldehyde by Gas Chromatography

利用气相色谱法对多聚甲醛中间体及产品中的甲醇进行定量分析 ,聚乙二醇毛细柱。热导检测器。He气为载气。该方法快速、准确 ,变异系数为 0 .12 % ,回收率为 99.70 %～ 10 0 .38%。

The paper reports that the determination of methnol in intermediate compound and the product in the process of paraformaldehyde by gas chromatography with thermal conduction detector.Using HP-INNOWAX capillary column and He as carrier gas.The method is rapid and accurate.The results showed that coefficients of variation were 0.12%.The recoreve was between 99.70%～100.38%.