摘要
设计了一种新型检测咖啡酸的方法。利用不浓度的咖啡酸加入四氮杂大环镍配合物催化的Briggs-Rauscher(BR)化学振荡体系(KIO_3-[Ni L](Cl O_4)_2-H_2SO_4-H_2O_2-丙二酸)中,化学振荡体系受到不同的扰动从而达到定量分析咖啡酸的效果。[Ni L](Cl O_4)_2中的配体L为5,7,7,12,14,14-六甲基-1,4,8,11-四氮杂环-4,11,-二烯。研究发现,当咖啡酸浓度在1.5×10^(-6)~2.0×10^(-5)M之间变化时,抑制时间与加入体系的咖啡酸浓度呈现一定浓度的线性关系。在尝试用循环伏安和原有的FCA模型的基础上,提出可能的反应机理。
This paper reported a new method to determine caffeic acid in this paper. When the caffeic acid was injected into the new BR oscillating system, the perturbation effects of caffeic acid were examined. The ligand L in the complex [Ni L]（Cl O4）2is 5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradeca4,11-diene. We define the inhibition time as a parameter to discuss the influence. As a result, when the concentration of caffeic acid is during 1.5×10（-6）-2.0×10（-5）M, there is a linear relationship between the concentration of caffeic acid and the inhibition time. In order to find the optimum condition, the control variable method was used. And through the method of cyclic voltammetry, we can explore the perturbation mechanism about the system.
出处
《阜阳师范学院学报（自然科学版）》
2016年第1期31-36,共6页
Journal of Fuyang Normal University(Natural Science)
基金
国家自然科学基金项目(21171002
21401024)资助
