Citation: Jing Bai, Hong Yan Wang, Hong Wen Gao. Rapid determination of Cl^- by light-absorption ratio variation approach using Cl^--eosin Y-Ag⁺ adsorptive precipitation[J]. Chinese Chemical Letters, ;2008, 19(5): 569-572. doi: 10.1016/j.cclet.2008.02.004 shu

Rapid determination of Cl^- by light-absorption ratio variation approach using Cl^--eosin Y-Ag⁺ adsorptive precipitation

State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China

Received Date: 10 December 2007

Fund Project: This research was supported by the National Natural Science Foundation of China (No.20477030).

The adsorptive precipitation between eosin Y (EY) and AgCl colloids at pH 3.73 caused the sensitive color change of thesolution. The reaction mechanism between EY and AgCl was analyzed and this reaction was used for determination of Cl^-in tracelevel by the light-absorption radio variation approach.
- Determination of chloride,
- Eosin Y,
- Adsorptive precipitation,
- Light-absorption ratio variation approach
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