Development of a small-scale heavy metal detection system using pulse-modulated inductively coupled He microplasma combined with micro total analysis system

脉冲调制电感耦合He微等离子体结合微全分析系统的小型重金属检测系统的研制

• 批准号: 22760051
• 负责人: TAJIMA Satomi
• 金额: $ 2.16万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22760051/
• 关键词: マイクロプラズマ; パルス変調; ジェット進展; ストリーマー; 血漿分離; μTAS; パルス駆動; 局所はっ水化; プラズマレスエッチング; Heプラズマ; 高精度化; プラズマへの液体導入; 小型; 電子エネルギー; 安定駆動

Conventional inductively coupled plasma ICP-atomic emission spectroscopy AES with high-gas temperature can detect ppb level heavy metal from environmental samples, such as blood, water, and soil. However, the ICP-AES is large and require complicated environmental sample preparation sequences so that the system cannot be used for the real-time on-site heavy metal detection. In this study, a small-scale ICP was pulse-modulated. The initial peak, produced by the difference in the ramping speed of electron temperature and electron density was used to detect ppb level signal from reference sample. In the second year, a T-shape micro total analysis system(μTAS) was fabricated to collect blood serum from whole blood at high speed. The blood serum collection port was fixed at the width of 15 um while varying the blood cell collection port at 45-90 to obtain the optimum blood flow while preventing the hemolysis.

传统的高气体温度电感耦合等离子体ICP-原子发射光谱法AES可以检测环境样品（例如血液、水和土壤）中的ppb级重金属，但是ICP-AES体积大，需要复杂的环境样品制备步骤。该系统不能用于实时现场重金属检测。在本研究中，小型ICP是由电子温度和电子密度的斜坡速度差异产生的脉冲调制的。被用来检测第二年，制作了T型微全分析系统（μTAS），用于高速采集全血血清，血清采集口宽度固定为15 um。将血细胞采集口改变为 45-90，以获得最佳血流，同时防止溶血。

项目成果

Dynamic observation of the pulse-modulated atmospheric-pressure ICP microjets

脉冲调制常压ICP微射流的动态观测

• 发表时间: 2010
• 作者: S. Tajima;and T. Ichiki
• 通讯作者: and T. Ichiki

Generation of pulse-modulated He and He/Ar atmospheric-pressure inductively coupled microjets

脉冲调制 He 和 He/Ar 常压感应耦合微射流的产生

• 发表时间: 2010
• 作者: S. Tajima;S. Tsuchiya;T. Numura;M. Matsumori;S. Nakatsuka;and T. Ichiki
• 通讯作者: and T. Ichiki

Stable sample introduction to the pulse-modulated atmospheric-pressure inductively coupled plasma microjet atomic emission spectrometry

脉冲调制大气压电感耦合等离子体微射流原子发射光谱法的稳定进样

• 发表时间: 2011
• 作者: T. Nomura;S. Tsuchiya;S. Tajima;and T. Ichiki
• 通讯作者: and T. Ichiki

High-speed plasma enhanced chemical vapor deposition of flurocarbon film by atmosphereic-pressure inductively coupled plasma microjet

大气压电感耦合等离子体微射流高速等离子体增强氟碳薄膜化学气相沉积

• 发表时间: 2011
• 作者: S. Tajima;S. Tsuchiya;and T. Ichiki
• 通讯作者: and T. Ichiki

Spatiotemporal distributions of excited state Ar atoms and N_2 molecules in a pulse-modulated Ar atmospheric-pressure inductively coupled plasma microjet

脉冲调制Ar大气压电感耦合等离子体微射流中激发态Ar原子和N_2分子的时空分布

• 发表时间: 2011
• 作者: S.Tajiima;T.Ichiki
• 通讯作者: T.Ichiki