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Potentiometric Flow-injection Analysis of Alkali and Alkaline Metals with a Tungsten Oxide Coated Nafion Film Sensor by ZuLiang Chen; P. W. Alexander is a Engineering article available to read on EtoBox.
What is Potentiometric Flow-injection Analysis of Alkali and Alkaline Metals with a Tungsten Oxide Coated Nafion Film Sensor about?
## Potentiometricflow-injectionanalysisofalkaliand alkaline metals was possible using a novel type of electrochemical sensor based on tungsten oxide wire coated Nafion electrode. The response characteristics of a tungsten oxide coated Nafion sensor for alkali and alkaline metals were investigated by potentiometric flow-injection measurement. It was found that ion exchange preconcentrated metals by electrostatic interaction and also excluded the anion interference in the presence of Nafion film on the surface of the electrode. This sensor gave a linear response in the range of 4 ן 10 5מ -1 ן 10 2מ M with detection limits of 10 6מ M. The slopes of 39.2 and 44.4 mV/ decade for the K ם and Ca ם2 were obtained. Compared to bare electrode, the coated Nafion sensor offered a fast response time (Ͻ10 s), a stable baseline, and no anion interference.
Who reads Potentiometric Flow-injection Analysis of Alkali and Alkaline Metals with a Tungsten Oxide Coated Nafion Film Sensor?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- ZuLiang Chen; P. W. Alexander
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); VCH Publishers; Wiley (ISSN 0895-7533)
- Published
- 1997
- Language
- EN
- Field
- Engineering (Physical Sciences)