MRI: Acquisition of Instrumentation for Real-Time Molecular Level Measurement of Atmospheric Gas- and Particle-Phase Compounds

MRI：购买用于大气气相和颗粒相化合物实时分子水平测量的仪器

• 批准号: 1428738
• 负责人: Nga Lee Ng
• 金额: $ 48.23万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-09-01 至 2018-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1428738&HistoricalAwards=false
• 关键词: MRI; Acquisition; Instrumentation; Real; Time

Air quality and composition studies, especially of volatile organic compounds, their oxidation products leading to secondary aerosol particle formation, are based on a detailed knowledge of the molecular identity and concentration of many chemical compounds. Given the complexity of, and often vanishingly small concentrations of key chemical intermediates, techniques such as high resolution mass spectrometry are preferred. An interdisciplinary group at Georgia Tech jointly engaged in atmospheric chemistry, aerosols, clouds, climate, and air quality research will acquire a commercial instrument, a Filter Inlet for Gases and AEROsols High Resolution Time-of-Flight Chemical Ionization Mass Spectrometer (FIGAERO-HR-ToF-CIMS). This instrument will advance research in atmospheric trace gases/aerosols/clouds/air quality, expose undergraduate and graduate students to state-of-the-art mass spectrometric techniques, and serve as a locus to increase diversity in science and engineering at Georgia Tech.

空气质量和成分研究，特别是挥发性有机化合物及其氧化产物导致二次气溶胶颗粒形成的研究，是基于对许多化合物的分子特性和浓度的详细了解。考虑到关键化学中间体的复杂性，且浓度往往微乎其微，高分辨率质谱等技术是首选。佐治亚理工学院的一个跨学科小组共同从事大气化学、气溶胶、云、气候和空气质量研究，将购买一台商用仪器、气体和气溶胶高分辨率飞行时间化学电离质谱仪 (FIGAERO-HR) 过滤器入口-ToF-CIMS）。该仪器将推进大气微量气体/气溶胶/云/空气质量的研究，让本科生和研究生接触最先进的质谱技术，并作为增加佐治亚理工学院科学和工程多样性的场所。

项目成果

Secondary Organic Aerosol Formation from Reaction of 3-Methylfuran with Nitrate Radicals

• DOI: 10.1021/acsearthspacechem.9b00068
• 发表时间: 2019-06-01
• 期刊: ACS EARTH AND SPACE CHEMISTRY
• 影响因子: 3.4
• 作者: Joo, Taekyu;Rivera-Rios, Jean C.;Ng, Nga Lee
• 通讯作者: Ng, Nga Lee