분석과학 (Analytical Science and Technology)
- 제8권4호
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- Pages.611-615
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- 1995
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- 1225-0163(pISSN)
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- 2288-8985(eISSN)
Voltammetric Determination of Copper(II) at Chemically Modified Carbon Paste Electrodes Containing Alga
- Bae, Zun-Ung (Department of Chemistry, Kyungpook National University) ;
- Kim, Young-Lark (Department of Chemistry, Kyungpook National University) ;
- Chang, Hye-Young (Department of Chemistry, Kyungpook National University)
- 투고 : 1995.08.20
- 발행 : 1995.12.25
초록
The design of appropriate chemically modified electrodes should allow development of new voltammetric measurement schemes with enhanced selectivity and sensitivity. Microorganism like algae has high ability to trap toxic and heavy metal ions and different affinities for metal ions. A copper(II) ion-selective carbon paste electrode was constructed by incorporating alga Anabaena into a conventional carbon paste mixture, and then the film of 10% Nafion was coated to avoid the swelling of the electrode surface. Copper ion could be deposited at the 25% algamodified electrode for 15 min without the applied potential while stirring the solution by only immersing the electrode in a buffer (pH 4.0) cot1taining copper(II). Temperature was controlled at
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