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Citation: Xiuhong Liu, Cunxu Yan, Yue Zhang, Xuesong Gao, Haifeng He. 一种新型荧光指示剂应用于配位滴定法中铜含量的测定——分析化学实验教学设计与实践[J]. University Chemistry, ;2026, 41(8): 389-401. doi: 10.12461/PKU.DXHX202507135 shu

一种新型荧光指示剂应用于配位滴定法中铜含量的测定——分析化学实验教学设计与实践

School of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang 330038, Jiangxi Province, China

Corresponding author: Xiuhong Liu, Haifeng He,
Received Date: 28 July 2025
Accepted Date: 17 October 2025

基于“以学生为中心”的教学理念引导学生通过理论与实践结合、实验设计、验证实施，将一种新型荧光化合物作为配位滴定分析实验中的荧光指示剂应用于铜含量的分析，加深了学生对配位滴定分析原理的理解，培养了学生的探究意识，提升了学生的创新意识。与传统的颜色指示剂不同，本实验中使用的荧光指示剂通过滴定终点时从“关”到“开”的荧光突变现象来指示终点，其对Cu²⁺的高灵敏度响应可以实现对含Cu²⁺浓度低至1 × 10^-5 mol·L^-1的定量分析，且无需借助昂贵的荧光分光光度计，滴定分析操作简单，实验过程绿色安全，准确度高，学生参与实验的兴趣浓厚、成就感高。
- Fluorescent indicator,
- Coordination titration,
- Copper ion,
- Low concentration,
- Experiment teaching
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