摘要
阳极溶出伏安法测定微量镉是一项经典的仪器分析基础实验。然而,该实验项目的传统教学内容较难使学生体会所学知识对实际生产生活的价值,不能有效落实课程思政建设的要求。本文旨在通过对教学内容的创新设计,更好地实现思政育人目标。引导学生对新闻事件、学科发展历史、科学家的故事和行业发展最新动态进行调研与讨论,增加设计性和探索性内容,提高本实验的高阶性。采用实际购得的大米等粮食替代以往预先配制的镉溶液,并采用自己独立制备的汞膜电极替代商业化的极谱仪电极,使学生在巩固实验操作技能的基础上,了解分析仪器的发展及改造方式,并掌握分析化学的基本研究范式。对本实验内容的优化,有助于培养学生的科学精神与科研素养,使学生体会专业知识对解决实际生产生活问题的意义,帮助其树立职业追求目标并养成良好的社会责任意识。
The anodic stripping voltammetry method for determining trace cadmium is a classic fundamental experiment in instrumental analysis.However,the traditional teaching content of this experiment is difficult for students to appreciate the value of their acquired knowledge in practical industry and life,which fails to effectively meet the requirements for integrating ideological and political education into the course.Herein,we propose an innovative design and optimization approach for the experiment,better facilitating educational goals of curricular ideological and political education.It involves inspiring students to research and discuss recent news events,the history of the discipline,stories of scientists,and the latest trends in the industry.Additionally,design-oriented and exploratory elements are incorporated into the experiment,which improves the high-level nature of the course.Instead of using pre-prepared cadmium solutions,real-world samples like purchased rice and other grains are used.Furthermore,students independently prepare mercury film electrodes suitable for electrochemical workstations,replacing commercially available electrodes used directly in polarographs.This allows students to not only strengthen their practical skills but also understand the development and modification of analytical instruments and grasp fundamental research paradigms in analytical chemistry.The aforementioned optimizations of this experiment will help to cultivate students’scientific spirit and research aptitude,nurture them with the significance of academic knowledge in solving practical problems in the industry and life,and assist them in establishing professional goals and fostering a sense of social responsibility.
作者
李昆
高娜
宦双燕
王玉枝
Kun Li;Na Gao;Shuangyan Huan;Yuzhi Wang(State Key Laboratory of Chemo/Biosensing and Chemometrics,National Demonstration Center for Experimental FundamentalChemistry Education(Hunan University),Virtual Teaching and Research Section of Analytical Chemistry Course,College ofChemistry and Chemical Engineering,Hunan University,Changsha 410082,China.)
出处
《大学化学》
CAS
2024年第2期155-161,共7页
University Chemistry
基金
湖南省普通高等学校教学改革研究项目(HNJG-2022-0038,HNJG-2021-0343)
教育部首批“分析化学课程虚拟教研室”“化学实验教学改革研究虚拟教研室”“化学类专业基础理论课程虚拟教研室”建设项目。
关键词
仪器分析实验
阳极溶出伏安法
电分析化学
镉离子
课程思政
实验设计
Instrumental analysis experiment
Anodic stripping voltammetry
Electroanalytical chemistry
Cadmium ion
Ideological and political education
Design of experiment
