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Citation: Ziheng Zhang, Ran Hu, Yijin Ma, Xingrong Sun, Siwei Ma, Ren Zhu, Qiue Cao, Chuanhua Zhou. 紫外-可见分光光度法测定含铜废水中的铜离子[J]. University Chemistry, ;2021, 36(9): 210101. doi: 10.3866/PKU.DXHX202101012 shu

紫外-可见分光光度法测定含铜废水中的铜离子

National Demonstration Center for Experimental Chemistry and Chemical Engineering Education(Yunnan University), School of Chemical Science and Technology, Yunnan University, Kunming 650091, China

Corresponding author: Chuanhua Zhou, chzhou@ynu.edu.cn
Received Date: 7 January 2021

设计了一个通过紫外-可见分光光度法检测含铜废水中铜离子含量的本科教学实验。该实验基于芬顿反应原理，检测液中铜离子的存在可催化过氧化氢分解产生羟基自由基，后者将溶液中无色的3，3’，5，5’-四甲基联苯胺（TMB）氧化为黄色的TMB²⁺，利用TMB²⁺在452 nm处的吸光度，即可实现对含铜废水中铜离子的定量分析。本实验操作简便、测定时间短、稳定性较好且安全环保，符合本科教学实验的基本要求。
- Fenton reaction,
- Cu(II) detection,
- Ultraviolet-visible spectrophotometry,
- Undergraduate teaching experiment
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