三聚氰胺甲醛树脂中游离甲醛的测定分析  

Determination of Free Formaldehyde Concent of Melamine co-polycondensation Resin by Spectrophotometry

作　　者：王莉[1] 贾绘如[1] 谌晓玲[1] 陈晓华[1] 周拥华[1] 

机构地区：[1]西南化工研究设计院有限公司

出　　处：《合成材料老化与应用》2016年第4期70-73,共4页Synthetic Materials Aging and Application

摘　　要：建立了用分光光度法测定三聚氰胺甲醛树脂中游离甲醛含量的方法。以乙酰丙酮-乙酸-乙酸铵溶液为显色剂,进行显色测定。实验结果表明,该方法在甲醛的浓度为5.2×10^（-6）g/m L^32.9×10^（-5）g/m L间与吸光度成良好的线性关系（R^2〉0.9999）,测定的相对偏差在5%以内。实验表明该法准确、快捷、操作简便,应用于三聚氰胺甲醛树脂中游离甲醛含量的测定,取得了很好的结果。A visible spectrophotometry method was established for the determination of free formaldehyde concent of melamine co-polycondensation resin. The result indicated that the method has good linearity,simple operation as well as its quickness,and its recovery and precision can meet the demand for microanalysis.

关 键 词：游离甲醛 分光光度法 三聚氰胺甲醛树脂 

分 类 号：O652[理学—分析化学]