Optical emission- mass correlation spectrometry for specific ion in glow discharge plasma by ion cyclotron resonance.

通过离子回旋共振对辉光放电等离子体中特定离子进行光发射-质量相关光谱分析。

• 批准号: 11650826
• 负责人: MATSUTA Hideyuki
• 金额: $ 2.43万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650826/
• 关键词: Glow discharge; Ion cyclotron resonance; Optical emission soectrometrv; Laser ablation; Laser-induced plasma; 質量分光法

The glow-discharge cell was developed for the selective excitation of sample atoms by ion cyclotron resonance energy absorption. The developed cell could generate an RF (13.56MHz) He glow plasma and laser ablation was used for sample introduction into the plasma. In this experiment, Cu and Fe-Cu alloy were used as a sample. Although ion cyclotron resonance conditions of Cu^+, i.e. 72kHz RF and sweep around 3kG magnetic field was applied to the plasma, neither 72kHz RF absorption nor enhancement of Cu^+ emission intensity was observed. This may be explained as follows. Working pressure of the He glow discharge tube was about 3 Torr. Collision between Cu^+ and He atom occurred very frequently at this pressure. The collisions resulted in the broadening of RF absorption peak of ion cyclotron resonance very much, and then the absorption of the RF for selective excitation of Cu^+ hardly took place.Although selective excitation of Cu^+ by ion cyclotron resonance in the He glow discharge plasma was not successful, the glow discharge cell developed in this study was termed "laser ablation assisted RF He glow discharge emission spectrometry" and it was published in paper, in lecture meeting and in international conference.

辉光放电电池是为通过离子回旋共振能量吸收选择性激发样品原子而开发的。开发的电池可以产生 RF (13.56MHz) He 辉光等离子体，并使用激光烧蚀将样品引入等离子体。本实验以Cu及Fe-Cu合金为样品。尽管对等离子体施加了Cu^+的离子回旋共振条件，即72kHz RF和围绕3kG磁场的扫描，但没有观察到72kHz RF吸收或Cu^+发射强度的增强。这可以解释如下。 He辉光放电管的工作压力约为3Torr。在此压力下，Cu^+ 和 He 原子之间的碰撞非常频繁地发生。碰撞导致离子回旋共振的射频吸收峰展宽很大，从而几乎不发生用于选择性激发Cu^+的射频吸收。尽管He辉光中离子回旋共振选择性激发了Cu^+放电等离子体没有成功，本研究开发的辉光放电室被称为“激光烧蚀辅助射频氦辉光放电发射光谱法”，并在论文、讲座会议和国际会议上发表。

项目成果

H. Matsuta and K. Wagatsuma: "Emission Characteristics of a Low-Pressure Laser-Induced Plasma - Selective Excitation of Ionic Emission Lines of Cu -"Appl. Spectrosc.. (to be published.). (2002)

H. Matsuta 和 K. Wagatsuma：“低压激光诱导等离子体的发射特性 - Cu 离子发射线的选择性激发 -”Appl。

松田 秀幸: "レーザーアブレーション支援高周波ヘリウムグロー放電発光分光法の開発"分析化学. 49. 849-855 (2000)

Hideyuki Matsuda：“激光烧蚀辅助高频氦辉光放电发射光谱的发展”分析化学 49. 849-855 (2000)。

Hideyuki Matsuta: "Emission Characteristics of a Low-Pressure Laser-Induced Plasma-Selective Excitation of Ionic Emission Lines of Cu-"Applied Spectroscopy. (in press). (2002)

Hideyuki Matsuta：“低压激光诱导等离子体选择性激发铜离子发射线的发射特性”应用光谱。

松田秀幸: "レーザーアブレーション支援高周波ヘリウムグロー放電発光分光法の開発"分析化学. 49. 849-855 (2000)

Hideyuki Matsuda：“激光烧蚀辅助高频氦辉光放电发射光谱的发展”分析化学 49. 849-855 (2000)。

H. Matsuta, K. Wagatsuma and K. Kitagawa: "Development of r.f. powered helium glow-discharge optical emission spectrometry associated with sampling by laser ablation (in Japanese)"BUNSEKI KAGAKU. Vol. 49. 849-855 (2000)

H. Matsuta、K. Wagatsuma 和 K. Kitakawa：“与激光烧蚀采样相关的射频动力氦辉光放电光学发射光谱法的开发（日语）”BUNSEKI KAGAKU。