紫外分光光度法测定树脂整理剂中游离乙二醛  

Determination of free glyoxal in the resins by UV spectrophotometry

作　　者：陈红梅[1,2] 朱春华[2] 杨文杰[2] 

机构地区：[1]全国染料标准化技术委员会印染助剂分委会,浙江杭州311215 [2]浙江传化股份有限公司,浙江杭州311215

出　　处：《印染》2010年第23期39-41,共3页China Dyeing and Finishing

摘　　要：根据Cannizarro反应机理对乙二醛浓度的标定条件进行了优化,同时利用乙二醛与羟胺反应生成乙二醛二肟在230 nm处具有较强的紫外吸收,测定树脂整理剂中游离乙二醛的含量。乙二醛含量为0.2~4.0μg/mL时,该方法具有良好的线性,相关系数达0.999 99（n=8）,相对标准偏差为0.162%,检出限为1.09μg/mL,回收率为95%~105%。Standardization of the glyoxal solution was optimized based on the Cannizarro reaction mechanism.Based on the reaction of hydroxylamine and glyoxal to form glyoxime,the glyoxal content in the resin agent was determined at strong UV absorption 230 nm by UV spectrophotometry.The method showed a good linear relationship in the glyoxal concentration of 0.2～4.0 μg/mL with the correlation coefficient of 0.999 99（n=8）.The detection limit of the method was 1.09 μg/mL and RSD was 0.162%,the recovery rate of the glyoxal was in the range of 95%～105%.

关 键 词：测试 紫外分光光度法 乙二醛 树脂整理剂 

分 类 号：TS195.2[轻工技术与工程—纺织化学与染整工程]