| 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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| 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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