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自从赵藻藩[1]发表《络合滴定判别式存在的问题》一文以来,近几年对分析化学中络合滴定一章基本理论处理方法的争论一直进行着。核心问题是“8.5.3”规则的地位和弃留问题。分析化学界,尤其是搞分析化学教学的教师,对此一直给予了极大的关注。因为目前出版的高校统编教材和分析化学教学参考书,多数用的仍然是这个基本原则[2—5]。由于用“8.5.3”规则来处理络合滴定法中的金属离子M能否被准确滴定、
Ever since Zhao Zhaofan [1] published the article entitled “The Problem of Complexometric Titration Discrimination,” the debate over a chapter on the basic theoretical treatment of complexometric titration in analytical chemistry has been going on in recent years. The core issue is the status of the “8.5.3” rule and the issue of abandonment. Analytical chemistry, especially teachers engaged in analytical chemistry teaching, has been given a great deal of attention. Because the currently published university unified textbooks and analytical chemistry teaching reference books, most still use this basic principle [2-5]. As the “8.5.3” rule to deal with complexometric titration of metal ions M can be accurately titrated,