基于学科交叉的维生素C含量测定实验教学改革  

Experimental teaching reform of vitamin C content determination based on disciplinary integration

作　　者：李欣[1] 赵玉红[1] 张钧[1] 周浩[1] 李登文 赵立青[1] 石建党[1] 李小菊[1] 张伟英[1] 张翠竹[1] LI Xin;ZHAO Yuhong;ZHANG Jun;ZHOU Hao;LI Dengwen;ZHAO Liqing;SHI Jiandang;LI Xiaoju;ZHANG Weiying;ZHANG Cuizhu(National Experimental Teaching Demonstration Center of Biology,College of Life Science,Nankai University,Tianjin 300071,China)

机构地区：[1]南开大学生命科学学院生物国家级实验教学示范中心,天津300071

出　　处：《实验技术与管理》2020年第3期48-52,共5页Experimental Technology and Management

基　　金：南开大学2019年实验教学课程改革项目(2019NKSYJG);南开大学2019年自制实验教学仪器设备项目基金;南开大学在线课程建设基金项目(NKJG2019013)。

摘　　要：对维生素C含量测定进行改革与创新,教学内容增加了不同温度、作用时间、酸碱度、抗氧化剂、金属离子及络合剂等对维生素C稳定性影响的考察,并建立起稳定准确、安全便捷的紫外分光光度法测定维生素C含量变化。改进后的实验通过科学的实验方案以及合理的教学设计,提高了学生学习兴趣和实验教学效率,培养了学生跨学科运用生物学手段分析解决专业问题的能力。The determination of vitamin C content has been reformed and innovated, the investigation of the factors affecting the stability of vitamin C such as different temperature, action time, acidity and alkalinity, antioxidant, metal ion and complexing agent, etc., is added to the teaching content and a stable, accurate, safe and convenient ultraviolet spectrophotometry is established for the determination of vitamin C content. Through scientific experiment plan and reasonable teaching design, the improved experiment can improve students’ interest in learning and efficiency of experiment teaching, and train their ability of interdisciplinary application of biological means to analyze and solve professional problems.

关 键 词：实验教学 维生素C 紫外分光光度法 学科交叉 

分 类 号：G642.0[文化科学—高等教育学] Q5-33[文化科学—教育学]