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- Title
Highly Stable Polymeric Ionic Liquid Modified Electrode to Immobilize Ferricyanide for Electroanalysis of Sulfide.
- Authors
Chang, Jen‐Lin; Wei, Guor‐Tzo; Chen, Tsu‐Yin; Zen, Jyh‐Myng
- Abstract
We report here the preparation and application of a highly stable polymeric ionic liquid-modified electrode to immobilize ferricyanide for sulfide analysis. Good long-term stability of the modified electrode verifies its potential in sensor applications. The electrocatalytic sulfide oxidation signal at ∼0.0 V vs. Ag/AgCl in pH 7 PBS at the modified electrode was used for sulfide detection by hydrodynamic chronoamperometry and a detection limit of 12.9 nM ( S/ N=3) was obtained. Practical utility of the system is applied to the determination of sulfide content in hot spring water and ground water.
- Publication
Electroanalysis, 2013, Vol 25, Issue 4, p845
- ISSN
1040-0397
- Publication type
Article
- DOI
10.1002/elan.201200431