Detailed Investigations of Resonance Electron Capture Reactions in the Gas Phase

气相共振电子捕获反应的详细研究

• 批准号: 9816643
• 负责人: Eric Grimsrud
• 金额: $ 33.6万
• 依托单位: Montana State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-04-01 至 2003-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9816643&HistoricalAwards=false
• 关键词: Detailed; Investigations; Resonance; Electron; Capture

This project by Professor Eric Grimsrud of Montana State University is a study of the elementary steps of resonant electron capture reactions that occur in the gas phase. These reactions underlie the transduction response of electron capture detectors used in gas chromatography, ionization sources in ion mobility spectrometry, and several forms of negative ion mass spectrometry. Better understanding of these reaction steps leads to both better reproducibility of measurement, and then better quantitative measurements using transducers that involve these elementary steps. Mechanistic understanding may also lead to methods that can be used to decrease the rate of thermal detachment reactions, leading to applications of the transducers for the detections of compounds of low or moderate electron affinity.This proposal addresses the elementary steps that affect the response of a widely-used detector in gas chromatography, and a widely used ionization source in mass spectrometry. Better understanding of those steps will lead to more precise and accurate analytical measurements, most especially in methods used in environmental analysis.

蒙大拿州立大学的埃里克·格里姆斯鲁德教授的这个项目是对气相中发生的共振电子捕获反应的基本步骤的研究。 这些反应是气相色谱中使用的电子捕获检测器、离子迁移谱中的电离源和几种形式的负离子质谱的转导响应的基础。 对这些反应步骤的更好理解导致更好的测量再现性，以及使用涉及这些基本步骤的换能器的更好的定量测量。 机械的理解也可能导致的方法，可用于降低热分离反应的速率，导致应用的换能器的化合物的检测的低或中等的电子affiliation.This建议解决的基本步骤，影响广泛使用的检测器在气相色谱中的响应，和广泛使用的电离源在质谱。 更好地理解这些步骤将导致更精确和准确的分析测量，特别是在环境分析中使用的方法。