MRI: Acquisition of a High-Sensitivity Light Stable Isotope Ratio Mass Spectrometer for Critical Zone Studies

MRI：购买高灵敏度光稳定同位素比质谱仪用于关键区域研究

• 批准号: 1126627
• 负责人: Anthony Aufdenkampe
• 金额: $ 31.3万
• 依托单位: Stroud Water Research Center
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1126627&HistoricalAwards=false
• 关键词: MRI; Acquisition; Sensitivity; Light; Stable

1126627 AufdenkampeThis Major Research Instrumentation grant supports acquisition of a high-sensitivity stable isotope ratio mass spectrometer (Delta V plus with Conflo IV universal interface) at the Stroud Water Research Center (SWRC). The new instrumentation will provide enhanced capabilities and greater sensitivity analyses than currently available at the SWRC. The new IRMS system will be put to use in several funded projects with the overall goal of exploiting hydrogen, nitrogen, oxygen and carbon stable isotopes to track organic matter cycling in soils and stream environments. Natural abundance measurements and heavy isotope tracers will be used to track energy and carbon flow in stream ecosystems. Data from these measurements will support the development of dynamic mathematical models describing the movement, quantity and quality and transformation of nutrients through surface earth hydrological processes. Studies in collaboration with regional scientists engaged in NSF-funded Long Term Research in Environmental Biology (LTREB) sites and a regional Critical Zone Observatory (CZO) will be facilitated.***

1126627 Aufdenkampethis主要研究仪器赠款支持在Stroud Water Research Center（SWRC）上获得高敏性稳定的同位素比率质谱仪（Delta V Plus具有Conflo IV Univers Funsice Funseface）。 与SWRC目前可用的相比，新仪器将提供增强的功能和更高的灵敏度分析。 新的IRMS系统将用于多个资助的项目，其总体目标是利用氢，氮，氧气和碳稳定的同位素，以跟踪土壤和溪流环境中的有机物循环。天然丰度测量和繁重的同位素示踪剂将用于跟踪流生态系统中的能量和碳流。这些测量结果的数据将支持动态数学模型的发展，这些数学模型描述了通过表面地球水文过程的运动，数量和质量以及养分转化的发展。与从事NSF资助的环境生物学长期研究（LTREB）站点的区域科学家合作的研究和区域关键区观测站（CZO）将得到促进。*** ***