分析化学自主设计实验的实践与探索:测定磁介质铁路客票中铁的含量

Exploration and Practice of Self-Design Experiments in Analytical Chemistry: Determination of Iron Content in Magnetic Medium Railway Ticket

介绍了一个自主设计实验"测定磁介质铁路客票铁的含量",该实验设计选取生活中熟悉又"陌生"的铁路客票为研究对象,以经典验证型实验"无汞盐法测全铁"为理论和实验基础,学生自行查阅文献、设计实验方案、分析讨论方案,再进行具体实验探究,分析实验结果,并撰写小论文。该教学实验项目的实施能有效促进理论知识体系和实验操作技能的深度融合,提高学生的创新能力和综合素质。

This paper introduces a self-designed experiment, determination of iron content in magnetic medium railway ticket. The experiment design selects railway tickets in life as the research object, and takes the classical verification experiment "determination of total iron by none-mercury method" as the theoretical and experimental basis. Students are required to consult the literature, design the experimental schemes, discuss the schemes, carry out specific experiments, analyze the results, and write short papers. The implementation of the teaching experiment project can effectively promote the deep integration of theoretical knowledge system and experimental operation skills, and improve students’ innovative ability and comprehensive quality.