顶空色谱法测定聚乙烯醇树脂中的三聚乙醛含量  

Determination of Paraldehyde Content in Polyvinyl Alcohol Resin by Headspace Chromatography

作　　者：李光凤[1] LI Guang-feng(Anhui Wanwei High Tech Materials Co.Ltd.,Chaohu 238002,China)

机构地区：[1]安徽皖维高新材料股份有限公司,安徽巢湖238002

出　　处：《安徽化工》2020年第4期115-117,共3页Anhui Chemical Industry

摘　　要：介绍了采用顶空色谱法测定聚乙烯醇树脂中三聚乙醛含量的方法.以DMA为溶剂,将一定质量的聚乙烯醇树脂样品溶解,经顶空进样后,通过气相色谱测定其中三聚乙醛的含量.本方法精密度和准确度高,重复性好,且操作简便、快速.This article introduces a method for determining the content of paraldehyde in polyvinyl alcohol resin by head-space chromatography.This method uses DMA as a solvent to dissolve a certain amount of polyvinyl alcohol resin sample.After headspace injection,the content of paraldehyde was determined by gas chromatography.The test proves that the meth-od has high precision and accuracy,good repeatability,and easy and fast operation.

关 键 词：聚乙烯醇 三聚乙醛 DMA 顶空色谱 

分 类 号：R927[医药卫生—药学]