全自动表面张力仪的实验教学实践探索

Exploration and Practice of Experimental Teaching for Automatic Surface Tension Meter

该文介绍了用全自动表面张力仪测定学生自制的烷醇酰胺表面张力的实验过程。通过本实验学生不仅能掌握样品合成、前处理方法,还能更好地理解和掌握表面张力仪的工作原理、操作方法及其分析方法;同时在实验教学中,学生亲自操作测试自己的样品,提高了学习兴趣及动手能力,培养了对仪器的维护与保养意识。

It is introduced about the experiment process of measuring the surface tension of students＇ self-made alkanolamide by automatic surface tension meter. Through the experiment students can not only to master the sample synthesis, pretreatment methods, but also can better understand and master the working principle, operation methods and quantitative analysis methods of surface tension meter. In the experiment teaching, every student tests his own sample. It improves the students＇ interest in learning and practical ability, trains students＇ awareness of instrument maintenance.