摘要
培养应用型人才是当今社会对高等院校提出的新挑战。在分析检测中,水总硬度的测定是工作人员需要掌握的基本技能。分析化学实验课程中相关内容为“自来水总硬度的测定”,主要让学生掌握络合滴定的原理和操作步骤,实验设计相对简单。为了更好的培养应用型人才,切实提高学生的实践能力,在原有实验基础上,充分利用学校丰富的水资源,将实验扩展为学校中各处湖泊、学生宿舍、实验室水样的总硬度测定,并增设采用阳离子交换树脂“硬水变软水”的实验,为后续色谱法的学习奠定基础。
It is a new challenge for colleges and universities to cultivate application-oriented talents.In analytical determinations,the determination of total hardness of water is the basic skill that the staff needs to master.The relevant content of analytical chemistry experiment course is“Determination of total hardness of tap water”,which mainly enables students to master the principle and operation steps of complexometric titration,however the experimental design is relatively simple.In order to cultivate application-oriented talents better and improve students practical ability effectively,based on the original experiment,making full use of the abundant water resources of the university,the experiment was extended to the determination of total hardness of water samples from lakes,student dormitories and a laboratory in the university.Furthermore,the experiment of using cation exchange resin to“turn hard water into soft water”was added,which lays a foundation for the subsequent study of chromatography.
作者
李琛
李锐扬
曾艳萍
陈文静
余倩
韩增辉
Li Chen;Li Ruiyang;Zeng Yanping;Chen Wenjing;Yu Qian;Han Zenghui(School of Chemistry,Biology and Environment,Yuxi Normal University,Yuxi,Yunnan 653100,China;School of Physics and Electronic Engineering,Yuxi Normal University,Yuxi,Yunnan 653100,China)
出处
《云南化工》
CAS
2023年第7期138-140,共3页
Yunnan Chemical Technology
基金
玉溪师范学院一流本科课程建设项目(2021kc16)
玉溪师范学院教学研究与改革实践项目(202012)
玉溪师范学院基础教育教学改革研究(2022jc02)。
关键词
应用型人才
实验改进
总硬度
络合滴定
applied talents
experimental improvement
total hardness
complexometric titration
作者简介
李琛(1988-),女,山东日照人,博士,讲师,主要研究方向:天然产物和高分子材料的研究。;通讯作者:韩增辉(1986-),女,河南焦作人,博士,讲师,主要研究方向:化学及化工材料研发。
