Acquisition of a Gas Source Isotope Ratio Mass Spectrometer for Stable Isotope Analyses at the University of Puerto Rico, Mayaguez

在马亚圭斯波多黎各大学购买用于稳定同位素分析的气源同位素比质谱仪

• 批准号: 9871423
• 负责人: Robert Ripperdan
• 金额: $ 25.69万
• 依托单位: University of Puerto Rico Mayaguez
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-09-15 至 2001-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9871423&HistoricalAwards=false
• 关键词: Acquisition; Gas; Source; Isotope; Ratio

9871423 Ripperdan This grant, supported equally by Experimental Program to Stimulate Competitive Research (EPSCoR) and the Major Research Instrumentation (MRI) Program, provide partial funding for the acquisition of a gas source stable isotope ratio mass spectrometer (SIRMS) for the Geology Department at the University of Puerto Rico, Mayaguez. Establishment of this SIRMS facility at Puerto Rico will make it the only one of its kind both on the island and within the greater Caribbean region. As a result, acquisition of a SIRMS by the University of Puerto Rico provides an infrastructural improvement for the commonwealth and the University that significantly increases the ability of the PI and UPR colleagues to compete for federal and private sector research and development funding. While the main users of this facility are relatively young, they have already begun a number of research projects that require stable isotopic analyses of carbon and oxygen in marine microfossil tests, coralline skeletons, dissolved organic and inorganic carbon in groundwater and biological samples. Specific studies that will make use of the SIRMS include: combined chemostratigraphic and paleontological studies of the late Ordovician marine mass extinction, research on millennial-scale stable isotopic proxies of sea surface temperatures as recorded in coral skeletons, isotopic studies of adsorbed and structural water within natural and artificial zeolites in order to appraise their effectiveness for use in environmental remediation efforts and to improve their design, isotopic studies of hair for use in forensic toxicology, and ecological studies of the fate and pathways of organic matter in tropical ecosystems. Finally, given the number of currently funded NSF researchers that continue to conduct stable isotopic investigation on Caribbean samples, be they aqueous, coralline, igneous or otherwise, this facility will undoubtedly find use by a large number of visiting scientists and their students from U.S. mainland institutions. ***

小行星9871423 这项赠款得到了促进竞争性研究实验方案和主要研究仪器方案的同等支持，为马亚圭斯波多黎各大学地质系购置一台气源稳定同位素比质谱仪提供了部分资金。 在波多黎各建立这一系统监测系统设施将使其成为该岛和大加勒比区域内唯一的此类设施。因此，波多黎各大学获得了一个SIRMS，为联邦和大学提供了基础设施的改善，大大提高了PI和普遍定期审议同事竞争联邦和私营部门研究和开发资金的能力。 虽然这一设施的主要用户相对较年轻，但他们已经开始了一些研究项目，需要对海洋微化石测试中的碳和氧、珊瑚骨骼、地下水和生物样本中溶解的有机和无机碳进行稳定同位素分析。 将利用SIRMS的具体研究包括：结合化学地层学和古生物学研究晚奥陶纪海洋生物大灭绝，研究千年尺度的稳定同位素海洋表面温度的代理记录在珊瑚骨骼，对天然和人造沸石中的吸附水和结构水进行同位素研究，以评估其用于环境补救工作的有效性，改进其设计、用于法医毒理学的头发同位素研究以及热带生态系统中有机物质的命运和途径的生态学研究。 最后，考虑到目前资助的NSF研究人员继续对加勒比海样品进行稳定同位素研究的数量，无论是水，珊瑚，火成岩还是其他样品，这一设施无疑将被来自美国大陆机构的大量访问科学家及其学生所使用。 ***