摘要
采用EDTA测定水中钙镁离子含量的无机及分析化学实验,虽然步骤简单,但是涉及的知识点很多,学生通常对该实验原理理解不够深入.因此,文章就实验测定中所涉及的重要原理进行了深入解析,并对实验方法进行了适当的改进.
For the experiment of inorganic and analytical chemistry, it is easy to measure Ca2 + and Mg2 + content in aqueous solution using EDTA. However, students usually cannot fully understand the related principle involved in this experiment. Thus, we aim to interpret the main principle in the process of the experiment,and even try to improve the experiment method in this article.
作者
罗承源
刘小乐
姜昆
陈广慧
LUO Cheng-yuan;LIU Xiao-le;JIANG Kun;CHEN Guang-hui(Department of Chemistry, Shantou University, Shantou, Guangdong, 515063;Department of Natural Sciences, Shantou Polytechnic, Shantou, Guangdong, 515078)
出处
《韩山师范学院学报》
2016年第6期93-98,共6页
Journal of Hanshan Normal University
基金
汕头大学"创新强校工程"本科教学改革项目(项目编号:2016-2018)
关键词
EDTA
PH值
钙镁含量
原理解析
实验改进
EDTA
pH
Ca2+ and Mg2+ content
principle analysis
experimental improvement
