混合教学模式在仪器分析课程中的实践运用——以“气相色谱分析法”为例

doi:10.3866/PKU.DXHX202207077

Abstract

Abstract:

In the course of instrumental analysis, the blended teaching mode is designed, consisting of front analysis, the learning process online before class, online and offline linkage, classroom teaching offline, guidance after class, and learning evaluations. Taking the "Gas chromatography method" as an example, the practical applications of the blended teaching mode in the instrumental analysis course are fully studied, based on the comprehensive analysis of the learning conditions, the detailed collation of teaching contents, the designation of online and offline teaching processes, and the implementation of multi-dimensional learning evaluations. The advantages and problems in the applications of the blended teaching mode are discussed according to teaching reflection.

Key words: Instrumental analysis, Blended teaching, Gas chromatography, Teaching practice

Juan Zhang, Qingpu Liu, Jingwei Lei, Caixia Xie, Yongsheng Ji, Qiujuan Ma. Practical Applications of Blended Teaching Mode in Instrumental Analysis Course: Taking the "Gas Chromatography Method" as an Example[J].University Chemistry, 2023, 38(5): 13-20.

Figures/Tables 7

References 9

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学习主题	任务类型	任务说明
气相色谱柱	互动话题	课堂派APP发布互动话题：1) 常用的固体固定相有哪些？2) 选择固定液的原则是什么？3) 你了解分流进样吗？
气相色谱检测器	互评作业	以思维导图形式归纳总结热导、氢焰离子化、电子捕获、氮磷、火焰光度等检测器特点及适用对象
色谱条件选择	小组讨论	在线推送文献“气相色谱法同时测定西格列汀原料药中有机溶剂四氢呋喃、乙酸乙酯、丁酮、二氯甲烷、甲苯、N, N-二甲基甲酰胺的残留量”，从固定相选择、进样口温度、柱温、载气、检测器及温度、进样量等方面分析色谱条件设定，说出设定依据
定量分析	小组任务	1) 推导说明归一化法、外标校正曲线法、外标一点法、内标校正曲线法、内标对比法、内标校正因子法等定量计算过程；2) 理解、对比、归纳三种定量分析方法的特点；3) 课后习题等定量分析计算注：第1项，每个小组负责推导其中两个定量计算过程(可由教师分配)；第2项，小组讨论完成；第3项，每个小组选取一道习题作答并说明定量计算过程

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Practical Applications of Blended Teaching Mode in Instrumental Analysis Course: Taking the "Gas Chromatography Method" as an Example

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