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Updated: Jun 28, 2026

Accumulation and Analysis of Cuprous Ions in a Copper Sulfate Plating Solution
Published on: March 20, 2019
Copper(I) activity of the copper(II) ion-selective electrode
1Medical Chemistry Group, John Curtin School of Medical Research, Australian National University, P.O. Box 334, Canberra City, A.C.T. 2601, Australia.
The Orion copper(II) ion-selective electrode also detects copper(I) ions in acetonitrile solutions. This electrode exhibits Nernstian behavior for both copper(II) and copper(I) ions under specific conditions.
Area of Science:
- Electrochemistry
- Analytical Chemistry
Background:
- Ion-selective electrodes (ISEs) are crucial for monitoring specific ions in solutions.
- The Orion copper(II) ISE is typically used for copper(II) ion detection in aqueous environments.
Purpose of the Study:
- To investigate the behavior of the Orion copper(II) ISE in the presence of acetonitrile.
- To determine if the electrode can also respond to copper(I) ions.
Main Methods:
- Electrochemical measurements using the Orion copper(II) ISE.
- Testing the electrode response in aqueous solutions and solutions containing acetonitrile and copper(I) ions.
Main Results:
- The Orion copper(II) ISE shows good response to copper(II) ions in aqueous media.
- In the presence of acetonitrile and copper(I) ions, the electrode functions as a copper(I) ion-selective electrode.
- The electrode exhibits Nernstian behavior for copper(I) ion detection under these conditions.
Conclusions:
- The Orion copper(II) ISE demonstrates versatility, responding to both copper(II) and copper(I) ions.
- The electrode's performance is influenced by the solvent composition and the presence of different copper oxidation states.
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