基础化学实验教学的新理念——再议实验教学之本质

最近20年以来,国内高校的本科基础化学实验教学从理念、内容、标准,到组织机构和评价方法,都经历了一系列变化和改革。立足于新的历史机遇和时代,有必要深刻理解和厘清本科阶段基础化学实验教学的本质和角色,既不轻视和简慢其地位、也不夸大和拔高其效用;须还基础实验教学以其本来面目,着重深挖其在传播"第三类知识"(Knowhow)以及培养"元认知"能力当中的不可替代作用,才能在化学实验教学改革大潮中不懈怠、不迷惘。     

化学实验室玻璃仪器管理工作的改进与拓展

This paper introduces the recent improvements and developments of glassware managements in the chemistry laboratories of Nanjing University. Considering the importance of glassware in university chemistry experiments (UCEs) laboratories, the self-service management for glassware reservation and compensation system has been developed. This novel management model evidently reduces the workload of technicians and leads to more efficient laboratory operations, which has been proved by practice. In addition, the damage of glassware in UCEs in recent years was evaluated. From the viewpoint of problems in glassware damaging, an effective rectification scheme and further developments have been proposed, and then the self-service Cloud-cabinets has been put forward. Our practice proves that the Cloud-cabinet for glassware reservation system can make a great seamless connection between students and technicians based on the platform and booking terminals, which has produced a safer and more convenient pattern for glassware claims and compensations.     

维生素C的历史——从征服"海上凶神"到诺贝尔奖

This paper reviews the course of understanding vitamin C. From the "sea god" that sailors first encountered to the scurvy that caused the British Navy to suffer, understanding vitamin C is improved little by little. Until modern times, with the guidance of advanced theory and the rapid development of chemical research, human beings finally got to known vitamin C and conquered scurvy. This marks the arrival of a new era.     

重金属化学试剂的回收再利用 ——以"三氯化六氨合钴实验"为例

A new experiment, Recycle of cobalt and silver, has been designed, based on the original experiment "Preparation and analyses of complex[Co(NH₃)₆]Cl₃". Both cobalt and silver are heavy metals, which can cause serious environmental pollution. In our experiments, cobalt chloride was recovered from the product[Co(NH₃)₆]Cl₃, and silver nitrate was extracted from the byproduct in the process of chlorine content determination. Therefore, both the above-mentioned heavy metals can be recycled. Our experimental design has been proved to be able to promote studying interests of students, enhance environmental awareness of students, and in the meantime reduce experimental costs.     

基于课立方系统的大学化学实验教学模式改革实践

在传统的大学化学实验教学中,学生以被动接受为主,学习交互性差,自主思考不足,不利于学生综合素质的培养和创新能力的提高。随着互联网技术的飞速发展,基于各种信息化手段的教学模式应运而生。课立方系统可集预习系统、微信公众平台、翻转课堂等多种教学模式为一体,形成以学生为中心的全周期智能化教学模式,实现学生的实验课前练习测试、课堂数据记录、课后作业互评讨论等多种功能。实践表明,课立方系统应用于大学化学实验课程教学,能够有效提高化学实验课的教学效率,并且大大促进学生的自主学习,为互动式大学化学实验教学注入新的活力。