Acquisition of a Multi-use Isotope Ratio Mass Spectrometry System: Upgrade of Isotope Biogeochemistry Laboratory

该拨款支持购买稳定同位素比质谱（SIRMS）系统，该系统将安置在北卡罗莱纳州立大学海洋、地球和大气科学系（MEAS）。带有气相色谱仪和元素分析仪制备装置的双入口SIRMS将投入使用。SIRMS系统将允许分析碳、氮和氢的化合物特定稳定同位素，并促进MEAS和林业部广泛的基础和应用地球化学和生物地球化学研究项目，这些项目寻求追踪自然发生和人为有机物种的命运、保存或封存。所请求的SIRMS的主要用户将包括首席PI Neal Blair和联合i的Elana Leithold， Mary Schweitzer， John Fountain和MEAS的David DeMaster以及林业的Elizabeth Nichols。更广泛的影响包括改善NCSU本科生和研究生以及该州高中科学教师的教育机会。此外，有机碳循环的研究建议对国家污染物修复和温室气体排放政策具有指导意义。＊＊＊

0447095BlairThis grant supports acquisition of a stable isotope ratio mass spectrometry (SIRMS) system to be housed in the Department of Marine, Earth and Atmospheric Sciences (MEAS) at North Carolina State University. A dual inlet SIRMS with gas chromatograph and elemental analyzer preparative devices will be commissioned. The SIRMS system will allow for analysis of compound specific stable isotopes of carbon, nitrogen, and hydrogen and facilitate a wide range of basic and applied geochemical and biogeochemical research projects in MEAS and the Department of Forestry that seek to trace the fate, preservation or sequestration of naturally occurring and anthropogenic organic species. Primary users of the requested SIRMS will include lead PI Neal Blair and co-I's Elana Leithold, Mary Schweitzer, John Fountain, and David DeMaster of MEAS and Elizabeth Nichols of Forestry. Broader impacts include improved educational opportunities for undergraduate and graduate students at NCSU and high school science teachers in the state. In addition, proposed studies of organic carbon cycling have implications for national policies concerning pollutant remediation and greenhouse gas emissions. ***