MRI: Acquisition of a quadrupole inductively coupled plasma mass spectrometer for research and teaching on marine organisms and biogeochemistry

MRI：购买四极电感耦合等离子体质谱仪，用于海洋生物和生物地球化学的研究和教学

• 批准号: 1625599
• 负责人: Benjamin Twining
• 金额: $ 21.93万
• 依托单位: Bigelow Laboratory for Ocean Sciences
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2019-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1625599&HistoricalAwards=false
• 关键词: MRI; Acquisition; quadrupole; inductively; coupled

The elements of the periodic table provide the building blocks for the earth and the organisms that inhabit it. Determining the elemental composition of organisms, along with other co-occurring environmental materials, provides valuable information for understanding basic molecular and ecological processes, determining controls on biological processes in the environment, and unraveling past environmental conditions on earth. Additionally, the elemental composition of biological and environmental samples is important information for resource managers and commercial producers. This award will fund (along with non-federal matching funds) the acquisition of a quadrupole inductively coupled plasma mass spectrometer to be used by researchers at Bigelow Laboratory for Ocean Sciences and faculty and students at nearby undergraduate colleges. The instrumentation will enable elemental measurements that will inform understanding of biogeochemical element cycling in the oceans and estuaries, as well as our knowledge of past environmental conditions and the potential response of marine species to future climate change. The instrumentation will used for both research projects and course-associated instruction for students at Bowdoin College and Colby College. Additionally, the instrumentation will provide enhanced, cutting-edge research opportunities for undergraduate students participating in Bigelow Laboratory?s on-site summer REU program and fall Changing Oceans semester program. The instrumentation will also improve research opportunities for postdoctoral researchers at the Laboratory and will enable Bigelow Laboratory to assist the local aquaculture industry with measurements of elemental composition of bivalves and macroalgae. This service will both support costs of maintaining instrumentation and enable growth of commercial output in Maine.The award will fund purchase of a quadrupole inductively coupled plasma mass spectrometer equipped with a collision cell to reduce interferences via kinetic energy discrimination. An instrument such as the Thermo iCap Qc provides an extremely stable plasma and is capable of resolving relevant analytes such as Ti-48, Cr-52 and Fe-56. The instrument is equipped with highly efficient software, self-aligning injector, cone and lens assemblies, and fits on a benchtop. The award will also fund the purchase of an ESI seaFAST automated online sample introduction system that utilizes a resin chelation column to preconcentrate trace metal analytes of interest from seawater matrix prior to analysis.

元素周期表的要素为地球和居住在地球的生物提供了基础。 确定生物的元素组成以及其他共发生的环境材料，提供了有价值的信息，以理解基本的分子和生态过程，确定对环境中生物学过程的控制，并揭示地球上过去的环境条件。 此外，生物和环境样本的元素组成是资源经理和商业生产者的重要信息。 该奖项将资助（以及非联邦匹配基金），收购了四极杆的电感耦合等离子体质谱仪，可供Bigelow海洋科学和教职员工的研究人员和附近的学生的学生使用。 该仪器将实现元素测量值，以告知人们对海洋和河口中生物地球化学元素循环的了解，以及我们对过去环境条件的了解以及海洋物种对未来气候变化的潜在反应。 该仪器将用于研究项目和鲍登学院和科尔比学院的学生的课程相关教学。 此外，该仪器将为参加Bigelow实验室现场夏季REU计划和秋季改变海洋学期计划的本科生提供增强的尖端研究机会。 该仪器还将为实验室的博士后研究人员提供研究机会，并使Bigelow实验室能够协助当地水产养殖行业，以测量双壳类和大量藻类的元素组成。这项服务既将支持维持仪器的成本，又可以使缅因州的商业产出增长。该奖项将资助购买四极杆电感耦合等离子体质谱仪，配备了碰撞电池，以通过动能歧视来减少干扰。 诸如Thermo ICAP QC之类的仪器提供了极为稳定的等离子体，并能够解决相关的分析物，例如TI-48，CR-52和FE-56。 该仪器配备了高效的软件，自我对准喷油器，锥体和镜头组件，并安装在台式上。 该奖项还将资助购买ESI Seafast自动化在线样品介绍系统，该系统利用树脂螯合柱在分析之前先从海水矩阵中获得浓缩的痕量金属分析物。