摘要
3,5-二叔丁基邻苯醌模型物与H_(2)O_(2)反应,先采用GC-MS进行定性分析,然后用紫外-可见分光光度法来定量分析氧化降解过程中邻苯醌浓度的变化规律,在最大吸收波长处测量一定浓度样品溶液的吸光度,并与一定浓度的对照溶液的吸光度进行比较,采用吸收系数法求出样品溶液的浓度;直观的表征邻苯醌发色基团与H2O2反应时的变化特性,为进一步动力学研究提供了一种方法路径。
The 3,5-di-tert-butyl-o-benzoquinone model compound reacted with hydrogen peroxide.Qualitative analysis was carried out by GC-MS,and then the variation of o-benzoquinone concentration in the process of oxidative degradation was quantitatively analyzed by UV Vis spectrophotometry.The absorbance of a certain concentration of sample solution was measured at the maximum absorption wavelength,and compared with that of a certain concentration of control solution The concentration of the sample solution can be calculated,and the change characteristics of o-benzoquinone chromophore group with hydrogen peroxide can be directly characterized,which provides a method for further kinetic study.
作者
郗伟
李斌
XI Wei;LI Bin(College of Chemical Engineering Department,Shaanxi Institute of Technology,Xi′an 710302,China)
出处
《化学工程师》
CAS
2021年第8期22-25,共4页
Chemical Engineer
基金
陕西省自然科学基础研究计划项目(2019JM-389)
陕西国防工业职业技术学院2019年科研计划项目(No.Gfy19-30)。
关键词
分光光度法
邻苯醌
发色基团
实验研究
spectrophotometry
o-benzoquinone
chromogenic group
experimental study
