Acquisition of Capability for Single-Compound AMS Measurement of Organic Matter at the W.M. Keck Carbon Cycle Accelerator Mass Spectrometry Facility at UC Irvine

W.M. 获得有机物单一化合物 AMS 测量能力

• 批准号: 0447323
• 负责人: Ellen Druffel
• 金额: $ 41.12万
• 依托单位: University of California-Irvine
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-12-15 至 2008-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0447323&HistoricalAwards=false
• 关键词: Acquisition; Capability; Single; Compound; AMS

EAR-0447323DruffelThe goal of this project is the development of a preparative capillary gas chromatograph (PCGC) that can be used to separate individual organic compounds from environmental samples. We will develop techniques to measure the radiocarbon (14C) in very small amounts (4 micrograms carbon) of these compounds using accelerator mass spectrometry (AMS). We will use an existing AMS that is operable for measuring small samples (15 micrograms carbon). Funds from this grant will be used for the PCGC and high vacuum lines, and to support a full-time postdoctoral researcher and part-time technician. The cycling of organic matter in soils, rivers and oceans remains a major uncertainty in the global carbon cycle. Measurement of the 14C in individual organic compounds is an essential tool to study the sources, preservation and cycling of carbon in terrestrial, aquatic, and marine organic matter. The graduate students involved in this project will obtain a strong background in organic biogeochemistry, as well as earth system science. It is anticipated that the techniques that we develop will become widely used throughout the environmental ecology and biogeochemical community.

EAR-0447323DRUFFEL该项目的目标是开发制备毛细管气相色谱仪（PCGC），可用于将单个有机化合物与环境样品分开。 我们将使用加速器质谱法（AMS）开发技术，以极少量（4微克碳）的这些化合物测量放射性碳（14C）。 我们将使用可操作的现有AMS测量小样品（15微克碳）。 该赠款的资金将用于PCGC和高真空线，并支持专职的博士后研究员和兼职技术员。在全球碳周期中，土壤，河流和海洋中有机物的循环仍然是主要的不确定性。 单个有机化合物中14C的测量是研究陆地，水生和海洋有机物中碳的来源，保存和循环的重要工具。参与该项目的研究生将获得有机生物地球化学以及地球系统科学方面的强大背景。可以预料，我们开发的技术将在整个环境生态学和生物地球化学社区中广泛使用。