Acquisition of a gas chromatograph-mass spectrometer system at Department of Earth, Environmental and Planetary Sciences, Brown University

布朗大学地球、环境和行星科学系购置气相色谱-质谱仪系统

• 批准号: 1801017
• 负责人: Yongsong Huang
• 金额: $ 9.67万
• 依托单位: Brown University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-03-01 至 2020-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1801017&HistoricalAwards=false
• 关键词: Acquisition; gas; chromatograph; mass; spectrometer

This award will provide a new gas chromatograph-mass spectrometer (GCMS) instrument for sensitive analysis of volatile and semi-volatile organic compounds at the Department of Earth, Environmental and Planetary sciences. It replaces a nineteen year old existing GCMS. This instrument is crucial for research by multiple PIs with a history of well-funded NSF projects, for training graduate students and postdocs, undergraduate students, as well as visiting scientists. All four PIs have ongoing research projects that require use of GCMS for identification and quantification of organic molecules extracted from geological and environmental samples. PIs and graduate students also actively participate in broader impact activities such as teaching at local GK-12 schools with diverse under-represented populations. The instrument to be purchased will be used to identify and quantify a wide range of important geological biomarkers including alkenones, sterols, polycyclic aromatic hydrocarbons, long chain alkyl-diols etc. These biomarkers in sediment cores provide critical insights to past temperature changes, human activities, natural fires and biological productivity. The existing GCMS instrument is three generations behind the state-of-the-art and has suffered from major decline in sensitivity and increasing maintenance costs, which has significantly affected training and research of students and postdocs. The new GCMS will overcome these problems and greatly enhance the research and training activities.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该奖项将为地球、环境和行星科学部提供一种新的气相色谱-质谱仪(GCMS)仪器，用于挥发性和半挥发性有机化合物的灵敏分析。它取代了已有19年历史的现有GCMS。这一工具对于有NSF项目历史的多个个人投资机构的研究至关重要，对于培养研究生和博士后、本科生以及来访的科学家来说是至关重要的。所有四个PI都有正在进行的研究项目，需要使用GCMS来识别和量化从地质和环境样品中提取的有机分子。PIS和研究生还积极参加更广泛的影响活动，例如在当地GK-12学校任教，这些学校的人口比例偏低。将购买的仪器将用于识别和量化各种重要的地质生物标志物，包括烯酮、甾醇、多环芳烃、长链烷基二醇等。这些沉积岩心中的生物标志物可提供对过去温度变化、人类活动、自然火灾和生物生产力的重要见解。现有的GCMS仪器落后于最先进的三代，灵敏度大幅下降，维护成本不断增加，这严重影响了学生和博士后的培训和研究。新的GCMS将克服这些问题，并极大地加强研究和培训活动。这一奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Greenhouse Gas and Ice Volume Drive Pleistocene Indian Summer Monsoon Precipitation Isotope Variability

• DOI: 10.1029/2020gl092249
• 发表时间: 2021-02
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: S. McGrath;S. Clemens;Yongsong Huang;Masanobu Yamamoto