| Autor: |
Hoang V. Tran, Nhan T.T. Le, Chinh D. Huynh, Cuong D. Nguyen, Toan V. Phi |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Current Analytical Chemistry. 18:790-797 |
| ISSN: |
1573-4110 |
| DOI: |
10.2174/1573411018666220228152040 |
| Popis: |
Aim:Here, we report a simple strategy for the preparation of thermally exfoliated graphite (EG) and its application to modify glassy carbon electrode (GCE) surfaces for electrochemical Cu2+ ion sensing.Method:The electrochemical Cu2+ sensor was constructed by a layer modification of a glassy carbon electrode (GCE) with exfoliated graphite (EG) and chitosan (CS) as a binder, and CS also supports a large number of -NH2 functional groups for Cu2+ capture.Result:Due to the creation of a three-dimensional (3D) structure, the EG/CS-coated GCE (EG/CS/GCE) electrode exhibited a higher sensitivity towards Cu2+ detection than that of modification by graphite/chitosan (GP/CS), chitosan (CS) or graphite intercalated compounds (GIC)/chitosan.Conclusion:The proposed method could detect Cu2+ in the range of 10 μM to 3 mM with a detection limit of 0.5 μM and sensitivity of 43.62 μA mM-1. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
