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Citation: Enbo Shangguan, Chengke Wu, Jing Li, Suling Feng, Quanmin Li. 过硫酸铵氧化光度法测定微量锰的褪色机理探讨[J]. University Chemistry, ;2021, 36(4): 200412. doi: 10.3866/PKU.DXHX202004125 shu

过硫酸铵氧化光度法测定微量锰的褪色机理探讨

Enbo Shangguan ^1,2 ,
Chengke Wu ^2,, ,
Jing Li ² ,
Suling Feng ² ,
Quanmin Li ²

1.
School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453003, Henan Province, China;
2.
School of Materials Science and Engineering, Henan Normal University, Xinxiang 453003, Henan Province, China

Corresponding author: Chengke Wu, ckwu0304@163.com
Received Date: 30 April 2020

通过实验验证详细讨论了过硫酸铵氧化光度法测定微量锰的褪色机理，结果表明：过硫酸根离子受热分解所产生的过氧化氢导致了MnO₄^-发生褪色反应，用KIO₄代替过硫酸铵作为氧化剂测定微量锰不仅可以避免MnO₄^-发生褪色现象，还能获得准确测定结果。
- Ammonium persulfate,
- Trace manganese,
- Fading mechanism,
- Potassium periodate
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