Polyatomic Ion-Surface Collisions in Mass Spectrometry and Materials Science

质谱和材料科学中的多原子离子表面碰撞

• 批准号: 9632517
• 负责人: Luke Hanley
• 金额: $ 23.09万
• 依托单位: University of Illinois at Chicago
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-08-01 至 1999-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9632517&HistoricalAwards=false
• 关键词: Polyatomic; Ion; Surface; Collisions; Mass

This research project, supported in the Analytical and Surface Chemistry Program, focusses on the interaction of low energy polyatomic ions with adsorbate covered metal surfaces. During the tenure of this thirty-three month grant, Professor Luke Hanley and his students at the University of Illinois at Chicago will seek to develop an understanding of the surface induced dissociation of polyatomic ions for application in analytical mass spectrometry, and to investigate the deposition of energy into multilayers of adsorbates. A tandem quradrupole mass spectrometer with an ultra-high vacuum scattering chamber, developed recently by Professor Hanley under NSF grant CHE- 9220393, will be used in these studies. This research combines experimental and computational methods to study the interaction of low energy polyatomic ions with adsorbate covered metal surfaces. A detailed understanding of polyatomic ion-surface collisions is important to the development of surface induced dissociation (SID) as a sample introduction technique in bioanalytical mass spectrometry. Such an understanding is also important to the development of surface modification methodologies that are widely used in materials processing.

本研究项目，在分析和表面化学计划的支持下，侧重于低能量多原子离子与吸附物覆盖的金属表面的相互作用。 在这33个月的任期内，教授卢克汉利和他的学生在伊利诺伊大学芝加哥将寻求发展的多原子离子的表面诱导解离的应用在分析质谱的理解，并调查到吸附物的多层的能量沉积。 一个串联四极质谱仪与超高真空散射室，最近开发的汉利教授根据美国国家科学基金会授予CHE- 9220393，将用于这些研究。 本研究结合实验与计算的方法，研究低能多原子离子与金属表面吸附质的相互作用。 多原子离子-表面碰撞的详细理解是重要的表面诱导解离（SID）的发展作为一种样品引入技术在生物分析质谱。 这样的理解也是重要的表面改性方法，广泛用于材料加工的发展。