色谱2025，Vol.43Issue(10)：1170-1176,7.DOI:10.3724/SP.J.1123.2025.04005
"以建辅赛-以赛孵教-以教促学"闭环教学创新模式的构建与实践——以微等离子体-发射光谱仪器装置搭建及痕量元素分析实验为例
薛婉怡 1可迪 1张晓 1周晓东 1杨睿宁 1晁青岑 1陈明丽 1孟皓 1杨婷1
作者信息
- 1. 东北大学理学院,辽宁 沈阳 110004
- 折叠
摘要
Abstract
Experimental teaching,serving as a bridge between theoretical knowledge and practical competence,can deepen students'understanding of theoretical concepts,and enhance their ability to solve complex problems,thereby playing a pivotal role in cultivating elite chemistry talents for the national innovation system.By understanding the laws of higher education development and innovative talent growth,the Chemistry Experiment Teaching Center of the College of Sciences at Northeastern University has innovatively proposed a closed-loop teaching model:"Construction Supports Competitions-Competitions Nurture Teaching-Teaching Promotes Learning",aiming at the problem of difficult barrier between scientific research and pedagogy in talent development.This model is based on the requirements for cultivating top innovative talents,leveraging the practical feedback of disciplinary competitions,and creating a dynamic feedback mechanism of"Competition Incubation→Teaching Transformation→Competency Feedback".Taking the award-winning project"Micro-Plasma Emission Spectrometer Setup and Trace Element Analysis Experiment"from the Chemistry Innovation Design Competition as an example,this study demonstrates the model's breakthrough in traditional experimental teaching.Through a 4-class-hour experimental course,students independently construct a dielectric barrier discharge(DBD)micro atomic emission spectroscopy device,combined with hydride generation(HG)introduction technology to complete trace arsenic detection.The method showed a good linear relationship in the mass concentration range of 20-500 μg/L,with a coefficient of determination(R²)of 0.997.Teaching practice shows that students deepened their understanding of principles and made the instrument structure transparent through hands-on construction,promoting the improvement of teaching quality and providing a scalable innovative paradigm for the"high-order,innovative,and challenging"curriculum reform.关键词
实验教学/教学模式创新/仪器装置搭建/介质阻挡放电Key words
experimental teaching/innovation in teaching mode/construction of instrument devices/dielectric barrier discharge(DBD)分类
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薛婉怡,可迪,张晓,周晓东,杨睿宁,晁青岑,陈明丽,孟皓,杨婷.."以建辅赛-以赛孵教-以教促学"闭环教学创新模式的构建与实践——以微等离子体-发射光谱仪器装置搭建及痕量元素分析实验为例[J].色谱,2025,43(10):1170-1176,7.
