| Project/Area Number |
26870595
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental dynamic analysis
Green/Environmental chemistry
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| Research Institution | Chuo University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | レーザーアブレーション / 誘導結合プラズマ質量分析 / 赤外加熱管 / 酸化物粒子 / 塩化物粒子 / 融点 / 沸点 / レーザーアブレーション法 / イオン化率 / ICPMS / プラズマ / 単一粒子 |
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| Outline of Final Research Achievements |
To accelerate vaporization, atomization, and ionization efficiencies in laser ablation inductively coupled plasma mass spectrometry, we merged HCl gas with laser-ablated particles before introduction into the plasma, to convert their surface constituents from oxides to lower-melting chlorides. When particles were merged with HCl gas generated from HCl solution at 200℃, the measured concentrations of elements in the particles were 132% higher on average than the concentrations in particles merged with ultrapure water. Particle corrosion and oxide conversion to chlorides were confirmed by scanning electron microscopy and X-ray photoelectron spectroscopy, respectively. This experimental results suggests that vaporization, atomization, and ionization of the ablated particles in the ICP improved when HCl gas was merged with the ablated particles.
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