MRI: Acquisition of LA-ICP-MS to support research in environmental and engineered systems, geology and environmental geosciences, and chemistry for a sustainable future

MRI：收购 LA-ICP-MS 以支持环境和工程系统、地质学和环境地球科学以及化学领域的研究，以实现可持续的未来

• 批准号: 1828354
• 负责人: Kevin Gilmore
• 金额: $ 39.63万
• 依托单位: Bucknell University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-08-01 至 2022-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1828354&HistoricalAwards=false
• 关键词: MRI; Acquisition; LA; ICP; MS

Solving environmental and public health challenges requires science and policy informed by accurate measurement of trace elements in many types of environmental media. Those measurements can help answer many scientific questions, such as those involving Earth's mineral record, rare earth elements (REE), and human exposure in fabrication laboratories to nanoscopic aerosolized metal particles. The laser ablation inductively-coupled plasma mass spectrometer (LA-ICP-MS) acquired through this project will help Bucknell University faculty and student researchers pursue answers to these questions in the fields of environmental engineering, geology and environmental geosciences, chemical engineering, and others, by allowing efficient and accurate measurement of the majority of elements and isotopes. Bringing this research capability to central Pennsylvania will strengthen the region's competitiveness for researcher recruitment and funding. Bucknell University has in place several programs for increasing participation and retention of underrepresented students in STEM fields, providing a strong framework for maximizing this project's impact on research training infrastructure.The versatility of this instrument will support research across a broad range of disciplines. For example, analysis of municipal wastewaters and biosolids will reveal the abundance of REE available for recovery, opening up new sources for these critical raw materials. Diversification of the global REE supply chain could reduce the environmental impact of virgin REE extraction, bolster U.S. resource independence, and could alleviate human rights abuses arising from conflict metal situations. Second, the instrument's ability to characterize aerosol composition and properties will support research that could show that tools used in modern MakerSpaces generate metallic nanoparticles with sizes and character that represent an inhalation exposure risk to humans. These results should help fill the gap in occupational safety/health policies and emissions controls for these modern fabrication tools to which children in K-12 school laboratories are increasingly exposed. Finally, minerals can be analyzed for isotope geochronology and trace element geothermometry to understand when and how they form. Results have the potential to open a new frontier in solving questions about the rates of tectonic processes, the timing of extinction events and rates of climate change over geologic timescales.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.

解决环境和公共卫生的挑战需要科学和政策，通过准确测量许多类型的环境媒体中的微量元素来告知。这些测量值可以帮助回答许多科学问题，例如涉及地球矿物记录，稀土元素（REE）和人类在制造实验室中的人类暴露于纳米镜面雾化金属颗粒的问题。 The laser ablation inductively-coupled plasma mass spectrometer (LA-ICP-MS) acquired through this project will help Bucknell University faculty and student researchers pursue answers to these questions in the fields of environmental engineering, geology and environmental geosciences, chemical engineering, and others, by allowing efficient and accurate measurement of the majority of elements and isotopes.将这项研究能力带到宾夕法尼亚州中部将增强该地区在研究人员招聘和资金方面的竞争力。巴克内尔大学（Bucknell University）制定了几个计划，以增加代表性不足的学生在STEM领域的参与和保留，为该项目对研究培训基础设施的影响提供了一个强大的框架。该工具的多功能性将支持跨广泛的学科研究。例如，对市政废物和生物固体的分析将揭示可供恢复的REE丰富，为这些关键原材料开辟了新来源。全球REE供应链的多元化可以减少维珍氏REE提取，增强美国资源独立性的环境影响，并可以减轻因冲突金属情况而引起的人权侵犯。其次，该仪器表征气溶胶组成和特性的能力将支持研究，这可能表明现代制造商空间中使用的工具会产生具有大小和特征的金属纳米颗粒，代表了对人类的吸入风险。这些结果应有助于填补这些现代制造工具的职业安全/健康政策和排放控制的空白，而K-12学校实验室中的儿童越来越受到暴露。最后，可以分析矿物质的同位素地质学和痕量元素地热度法，以了解它们何时以及如何形成。结果有可能在解决有关构造过程速度的问题，灭绝事件的时间和气候变化比地质时间尺度上的时间变化的时间上打开新的领域。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识绩效和更广泛的影响审查标准来通过评估来通过评估来支持的。