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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/10592

Title: 液体電極プラズマの素過程の解明と高機能統合分析デバイスへの応用
Other Titles: Study on liquid electrode plasma and its application to high functional integrated analysis devices
Authors: 高村, 禅
Authors(alternative): Takamura, Yuzuru
Keywords: マイクロ・ナノデバイス
マイクロプラズマ
環境分析
分析化学
液体電極プラズマ
元素分析
発光分析
μTAS
Issue Date: 15-Jun-2012
Abstract: 液体電極プラズマによる発光分析は、極めて簡単に極微量溶液の高感度な元素分析が実現できる手法である。本研究ではプラズマ温度などプラズマの内部パラメータと流路形状などの外部パラメータの関係を調べ、感度・精度に及ぼす影響を調べた。また、本手法に適した前処理や、他のマイクロデバイスとのチップ上での統合も検討した。これらにより、検出限界、及び精度は向上し、例えばCd にて0.5ppb 程度の検出限界が得られた。 : High-sensitive liquid-electrode plasma atomic emission spectrometry (LEP-AES) are studied. Tthe limits of detection (LOD) were investigated in various condition of accumulation time, material of the chip, and the sample flow. It was found that the long accumulation using quartz chip with sample flow was very effective to improve LOD. Authors suggested that this was because bubbles remaining after each plasma pulse were removed from the narrow channel by sample flow, resulting high reproducible plasma generation, to enable high accumulation effect. Finally, LOD were calculated from calibration curve, to be 0.00052 μmg/L for Cd and 0.019.0 μmg/L for Pb at optimized condition. Sub ppb level LOD was achieved for Cd.
Description: 研究種目:基盤研究(B)
研究期間:2008~ 2010
課題番号:20310071
研究者番号:20290877
研究分野:微細加工、微小流体力学、バイオチップ、マイクロプラズマ
科研費の分科・細目:ナノ・マイクロ科学,マイクロ・ナノデバイス
Language: jpn
URI: http://hdl.handle.net/10119/10592
Appears in Collections:平成23年度 (FY 2011)

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