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%.
出处
《印染》
北大核心
2010年第23期39-41,共3页
China Dyeing and Finishing
关键词
测试
紫外分光光度法
乙二醛
树脂整理剂
testing
ultraviolet spectrophotometry
glyoxal
resin finishing agent
