2015 Fiscal Year Final Research Report
In-situ analysis of rare metal ions under deep sea by optical emission spectroscopy of discharge plasma operated in high-pressure water
| Project/Area Number |
26600129
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Plasma electronics
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| Research Institution | Kochi University of Technology |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
OH Jun-seok 高知工科大学, システム工学群, 助教 (90533779)
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| Research Collaborator |
OKAMURA Kei 高知大学, 教育研究部, 教授
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Keywords | レアメタル / 液中プラズマ / 発光分光法 / マイクロ放電 / マイクロプラズマ / 海水 |
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| Outline of Final Research Achievements |
It has been succeeded to ignite reproducible micro-discharge plasma by applying pulse current using an impulse generator circuit to pin-to-plate electrodes in sea water (artificial sea water: 10ASW and natural deep sea water sampled at Muroto) and to observe optical emission spectra from the plasma. To assign the emission peaks in the spectra to each elements, micro-discharge and optical emission spectroscopy was carried out also for each solution of ingredient in 10ASW. In the emission spectra from plasma of sea water, emission peaks from composition elements and contaminants from electrodes were found.
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| Free Research Field |
放電プラズマの生成、制御、応用
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