MRI: Acquisition of a Laser Ablation System for Inductively Coupled Plasma Mass Spectroscopy at Union College

1039832 frey该MRI奖资助激光烧蚀系统与现有的电感耦合等离子体质谱计（ICP-MS）耦合，以加强地球化学和固体材料的研究。激光烧蚀（LA）系统将扩展分析能力，并为pi提供新的机会。地质学、化学和物理学的七名教员和他们的学生将立即受益。目前，该学院不具备原位和高空间分辨率的能力；目前ICP-MS只支持基于溶液的样品。研究议程连接了几个学科和新的激光烧蚀系统将支持更好地理解：利用斜长石中Sr、Ba、Rb、Y和REE元素进行岩浆混合分析，斜长石中Sr、Ba、Rb、Y和REE元素的分配，微量元素测温，裂变径迹测年和锆石微量元素组成，微量元素扩散剖面作为冷却速率(s)的代用物，利用氧化敏感元素记录的恐龙化石矿物中的地下水化学，热带安第斯湖岩心古气候，软体动物壳中的钡——环境条件的双重代用物。拉脱石/聚苯胺纳米组装分析，激光光谱学和艺术保护。这些仪器将被用于将研究作为本科课程的一个组成部分，并通过使用最先进的仪器来开发创新的、多学科的教学和研究机会。LA ICP-MS将整合到各个层次的教师个人研究、教师和学生合作研究活动以及地质学和化学课程的实验室训练练习中，以丰富本科生的研究经验。这些学院在让本科生参与研究方面有着良好的记录。许多人攻读科学研究生，从事研究工作。代表性不足的群体积极参与研究和教育项目。LA系统将被并入Union？该项目包括来自弱势群体和弱势群体背景的年轻人。与周边机构的联系也将进行。LA系统将被安置在支持ICP-MS的现有设施中。样品制备实验室毗邻ICP-MS实验室。有充足的准备、储存和处理样品的设施和设备。目前的ICP-MS已经使用了20年，只有6个月的停机时间。pi积累了超过40年的ICP-MS经验。PI将利用休假全职工作，设置和准备新的仪器。有专门的仪器技术员进行日常维护。地质部门的资金将用于服务和维护。日程安排将在一个特别的基础上完成，最初与自动化系统作为一个选项。培训将由pi进行。＊＊＊

1039832FreyThis MRI award funds a laser ablation system to couple with an existing Inductively Coupled Plasma Mass Spectrometer (ICP-MS) to enhance geochemistry and solid materials research. The laser ablation (LA) system will allow expanded analytical capabilities and provide new opportunities for PIs. Seven faculty and their students Geology, Chemistry, and Physics will immediately benefit. Currently, in situ and high spatial resolution capabilities are not available at the College; the current ICP-MS only supports solution-based samples. The research agenda bridges several disciplines and the new laser ablation system will support better understanding of: magma mixing using plagioclase trace element analysis, Sr, Ba, Rb, Y, and REE partitioning in plagioclase, trace element thermometry, fission track dating and zircon trace element composition, trace element diffusion profiles as proxies for cooling rate(s), groundwater chemistry as recorded by minerals in dinosaur coprolites using redoxsensitive elements, tropical Andean lake core paleoclimate, barium in mollusk shells - a dual proxy of environmental conditions, laponite/polyaniline nanoassembly analysis, and laser spectroscopy and art conservation. The instrumentation will be used to incorporate research as an integral part of the undergraduate curriculum and to develop innovative, multidisciplinary teaching and research opportunities through the use of state-of-the-art instrumentation. The LA ICP-MS will be integrated into individual faculty research, faculty and student collaborative research activities, and laboratory training exercises in Geology and Chemistry courses at various levels to enrich the undergraduate research experience. The PIs have a strong record of involving undergraduate students in research. Many pursue graduate studies in the sciences and careers in research. Underrepresented groups are actively included in research and educational projects. The LA system will be incorporated into Union?s summer outreach program, which includes youths from disadvantaged and underrepresented backgrounds. Outreach to neighboring institutions will also be made. The LA system will be housed in the current facility supporting the ICP-MS. A sample prep laboratory is adjacent to the ICP-MS lab. Ample facilities and equipment exists for sample prep, storage and processing. The current ICP-MS is 20 years old and has only had 6 months of downtime. The PIs amass over 40 combined years of ICP-MS experience. The PI will use sabbatical to work full-time setting up and preparing the new instrumentation. A dedicated instrument technician will perform routine maintenance. Geology Department funds will be used for service and maintenance. Scheduling will be done on an ad hoc basis originally with an automated system as an option. Training will be conducted by the PIs. ***