方寸之间,大放“光”彩——介绍一个中级分析化学实验

Send out“Light”Brilliance within Square Inches:Introducing an Analytical Chemistry Experiment at an Intermediate Level

设计了一个中级分析化学实验,将化学发光检测在纸芯片上完成。以硝酸铜和1,3,5-均苯三甲酸(H3BTC)为原料,水热法合成金属有机框架材料(MOFs),将此MOFs负载在纸芯片上,利用其对鲁米诺-H_(2)O_(2)化学发光体系的催化作用,可实现微量H_(2)O_(2)含量的测定。本实验可锻炼学生综合实验的动手能力,掌握数据处理过程,使师范生的创新能力得到提高。

An analytical chemistry experiment at an intermediate level is presented in this work,achieving the detection of chemiluminescence(CL)on a paper-based device.Using copper nitrate and benzene-1,3,5-tricarboxylic(BTC)acid in a metal-organic frameworks(MOFs)synthesis reaction,Cu-BTC with a catalytic effect was synthesized and loaded onto the paper’s surface.Due to the catalytic effect of Cu-BTC in a luminol-H_(2)O_(2)CL system,trace H_(2)O_(2)can be detected.This exercise can train students’practical ability in comprehensive experiments.It can also improve the intuitive ability of normal students to better grasp experimental data processing.