Study on transient phenomena of liquid electrode plasma and its application to organic/inorganic analysis
| Project/Area Number |
24310100
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Microdevices/Nanodevices
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| Research Institution | Japan Advanced Institute of Science and Technology |
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Principal Investigator |
Takamura Yuzuru 北陸先端科学技術大学院大学, マテリアルサイエンス研究科, 教授 (20290877)
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| Co-Investigator(Kenkyū-buntansha) |
Okino Akitoshi 東京工業大学, 総合理工学研究科, 准教授 (60262276)
Ukita Yoshiaki 山梨大学, 総合研究部, 助教 (40578100)
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2014: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2013: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2012: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
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| Keywords | 液体電極プラズマ / 元素分析 / マイクロプラズマ / 原子発光 / マイクロ流体デバイス / microTAS / 固相抽出 / 界面濃縮 / micro TAS / マイクロ・ナノデバイス / LEP-OES / 環境分析 / 分析化学 / バイオセンシング / マイクロTAS |
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| Outline of Final Research Achievements |
The transient phenomena of liquid electrode plasma and its application to organic/inorganic analysis was studied. The intensity of plasma emission of each element are found to relate the concentration at the boundary between liquid and gas phases. By using T shape flow channel or by making dimples at the surface of the plasma channel, we can enhance the concentration and improve the sensitivity. By using alternative current power source, a plasma as high sensitive as before was found to be generated with very less damage to the plasma channel, approximately 1/3000 less than before. We also successfully developed an integrated chip with column filled with ion exchange resin and liquid electrode plasma on a chip. Using this, we demonstrated solid phase extraction and concentration which improved the limit of detection to 1/40 with 1/40 less required sample compared to the case with non-integrated one.
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Report
(5 results)
Research Products
(32 results)
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[Presentation] Alternating Voltage Liquid Electrode Plasma (AC-LEP) for Highly Sensitive Detection of Lead,2015
Author(s)
D. V. Khoai, H. Miyahara, P. Ruengpirasiri, O. Chailapakul, S. Chuanuwatanakul, T. Yamamoto, P. T. Tue, A. Okino, Y.Takamura,
Organizer
7th International Symposium on Microchemistry and Microsystems & 化学とマイクロ・ナノシステム学会第31回研究会 (ISMM & Cheminas2015)
Place of Presentation
Kyoto, JAPAN(京都府、京都市）
Year and Date
2015-06-08
Related Report
Int'l Joint Research
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