The study of specific reactions of hydrogen radical under ambient conditions

环境条件下氢自由基特异反应的研究

• 批准号: 23550101
• 负责人: TAKAYAMA Mitsuo
• 金额: $ 3.33万
• 依托单位: Yokohama City University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23550101/
• 关键词: 水素ラジカル; オゾン; 質量分析; ビラジカル; 活性化学種; 大気圧微小プラズマ

To examine the reaction characteristics of hydrogen radicals under ambient conditions, we have made a generator of hydrogen radicals and estimated its performance. The hydrogen radical generator consists of a reaction cell of hydrogen gas and an ultraviolet lump of 160-400nm (3.8-7.7eV) in wavelength. The generation of hydrogen fluoride (HF) was confirmed with a mass spectrometer combined with an atmospheric pressure corona discharged ionization source. The mass spectrum showed the peaks corresponding to negative cluster ions F-(HF)n originating from the reactions of hydrogen radicals with Teflon wall of the reaction cell.

为了考察氢自由基在环境条件下的反应特性，我们制作了氢自由基发生器，并对其性能进行了评估。氢自由基发生器由氢气反应池和波长为160-400 nm(3.8-7.7 eV)的紫外光组成。用质谱仪和大气压电晕放电电离源相结合，证实了氟化氢(HF)的产生。质谱图显示负团簇离子F-(Hf)n的峰来自于氢自由基与反应室的Teflon壁的反应。

项目成果

Flexible Xxx&#8211;Asp/Asn and Gly&#8211;Xxx Residues of Equine Cytochrome <i>c</i> in Matrix-Assisted Laser Desorption/Ionization In-Source Decay Mass Spectrometry

灵活的xxx

• DOI: 10.5702/massspectrometry.a0007
• 发表时间: 2012
• 期刊: Mass Spectrometry
• 作者: T. Nishino;N. Hayashi;P. T. Bui;M. Takayama
• 通讯作者: M. Takayama

Application of negative atmospheric ions formed in corona discharges to specific analyte ionization under ambient conditions

电晕放电中形成的大气负离子在环境条件下对特定分析物电离的应用

• 发表时间: 2012
• 作者: T. Nishino;S. Kanata;Y. Umezawa;八ッ橋知幸;Kanako Sekimoto and Mitsuo Takayama
• 通讯作者: Kanako Sekimoto and Mitsuo Takayama

現代質量分析学

现代质谱分析

• 发表时间: 2013
• 作者: 高山光男;他編
• 通讯作者: 他編

Fragmentation Processes of hydrogen-Deficient Peptide Radicals in Matrix-Assisted Laser Desorption/Ionization In-Source Decay Mass Spectrometry

基质辅助激光解吸/电离源内衰变质谱中缺氢肽自由基的裂解过程

• 发表时间: 2012
• 期刊: J. Phys. Chem. B
• 影响因子: 3.3
• 作者: Nakashima,N.; Yamanaka;K.; Itoh;A.; Yatsuhashi T.;T. Nishino;D.Asakawa and M.Takayama;D.Asakawa and M.Takayama
• 通讯作者: D.Asakawa and M.Takayama

Specific Cleavage at Peptide Backbone C_α-C and CO-N Bonds during MALDI-ISD Mass Spectrometry with 5-nitrosalicylic Acid as the Matrix

以 5-硝基水杨酸为基质的 MALDI-ISD 质谱中肽主链 C_α-C 和 CO-N 键的特异性裂解

• DOI: 10.1002/rcm.5130
• 发表时间: 2011
• 期刊: Rapid Commun.Mass Spectrom.
• 作者: D.Asakawa;M.Takayama
• 通讯作者: M.Takayama