Analysis of Heavy-Metal Ions Using Mercury Microelectrodes and a Solid-State Reference Electrode on a Si Wafer
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概要
- 論文の詳細を見る
Micro working electrodes and a solid-state reference electrode have been fabricated using semiconductor processes for electrochemical detection of heavy-metal ions in aqueous media. The working electrodes are mercury-coated platinum microelectrodes 5 μm, 10 μm and 25 μm in diameter. The smaller electrode shows the higher sensitivity and the detection limits of the 5-μm-diameter electrodes are about 0.2 ppb and 0.4 ppb for cadmium and lead ions, respectively. The reference electrode is a Ag/AgCl electrode coated by polyvingl chloride(PVC)/Nafion layer containing Cl^- ions. The potential variation of the fabricated solid-state reference electrodes is about 55 mV under a 0.1 M Cl^- concentration.
- 社団法人応用物理学会の論文
- 2000-12-30
著者
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Kim H‐j
Hantech Co. Ltd. Kyungki‐do Kor
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YOON Euisik
Department of Electrical Engineering & Computer Science, KAIST
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Joo Segyeong
Department Of Electrical Engineering And Computer Science Korea Advanced Institute Of Science And Te
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YUN Kwang-Seok
Department of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and T
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KIM Hong-Jeong
Department of Chemistry and School of Molecular Science(BK21), Korea Advanced Institute of Science a
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KWAK Juhyoun
Department of Chemistry and School of Molecular Science(BK21), Korea Advanced Institute of Science a
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Kwak Juhyoun
Department Of Chemistry And School Of Molecular Science(bk21) Korea Advanced Institute Of Science An
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Yun Kwang-seok
Department Of Electrical Engineering And Computer Science Korea Advanced Institute Of Science And Te
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Kim Hong-jeong
Department Of Chemistry And School Of Molecular Science(bk21) Korea Advanced Institute Of Science An
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Kwak Juhyoun
Department Of Chemistry And School Of Molecular Science(bk21) Korea Advanced Institute Of Science An
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Yoon Euisik
Department Of Electrical Engineering And Computer Science Korea Advanced Institute Of Science And Te
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