引用本文:
郑童育, 李腾, 韩晓宇, 柴喻培, 赵可心, 刘全, 季晓晖. 基于柿子提取物的自制pH检测剂和酸碱变色科普实验[J]. 大学化学,
2024, 39(5): 27-36.
doi:
10.3866/PKU.DXHX202309107
Citation: Tongyu Zheng, Teng Li, Xiaoyu Han, Yupei Chai, Kexin Zhao, Quan Liu, Xiaohui Ji. A DIY pH Detection Agent Using Persimmon Extract for Acid-Base Discoloration Popularization Experiment[J]. University Chemistry, 2024, 39(5): 27-36. doi: 10.3866/PKU.DXHX202309107
Citation: Tongyu Zheng, Teng Li, Xiaoyu Han, Yupei Chai, Kexin Zhao, Quan Liu, Xiaohui Ji. A DIY pH Detection Agent Using Persimmon Extract for Acid-Base Discoloration Popularization Experiment[J]. University Chemistry, 2024, 39(5): 27-36. doi: 10.3866/PKU.DXHX202309107
基于柿子提取物的自制pH检测剂和酸碱变色科普实验
English
A DIY pH Detection Agent Using Persimmon Extract for Acid-Base Discoloration Popularization Experiment
Abstract:
This experiment employs the coordination reaction between epigallocatechin gallate (EGCG) from persimmon extract and ferrous sulfate. The study investigates the responsive changes of the complex solution at different pH, aiming to achieve a portable differentiation application for common acidic and alkaline substances in daily life. The experiment utilizes readily available raw materials, ensures a safe process, and demonstrates observable phenomena, allowing the audience to appreciate the beauty of chemical transformations and fostering a strong interest in the field of chemistry.
-
Key words:
- Persimmon
- / Tannins
- / Iron coordination compound
- / Portable pH measurement
-
-
[1]
柿子红了.[2023-10-29]. http://www.fuping.gov.cn/xwzx/bmdt/1660986915855446018.html
-
[2]
孙川. 家庭中医药, 2020, 27(12), 52.
-
[3]
陈美红. 柿单宁抗氧化活性及水解工艺研究[硕士学位论文]. 武汉: 华中农业大学, 2009.
-
[4]
刘智高, 陈涛, 胡朝浩, 王殿辉, 王仲民, 李桂银. 物理学报, 2021, 70(12), 222.
-
[5]
李晓艳, 曾艳丽, 孟令鹏, 郑世钧. 大学化学, 2010, 25(4), 81.
-
[1]
-
扫一扫看文章
计量
- PDF下载量: 3
- 文章访问数: 194
- HTML全文浏览量: 9
下载:
