RUI: Acquisition of a Stable Isotope Ratio Mass Spectrometer

RUI：购买稳定同位素比质谱仪

• 批准号: 0216179
• 负责人: William Peck
• 金额: $ 15万
• 依托单位: Colgate University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-09-15 至 2004-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0216179&HistoricalAwards=false
• 关键词: RUI; Acquisition; Stable; Isotope; Ratio

0216179PeckFunds from this Major Research Instrumentation (MRI) grant will be used to acquire a dual-inlet stable isotope ratio mass spectrometer for the Department of Geology at Colgate University. The instrument will be used primarily in the analysis of oxygen isotope ratios in silicates by on-line laser fluorination, in addition to analyses of gases prepared by combustion or reaction with acid off-line. Laser fluorination is the method of choice for analysis of refractory mineral separates for oxygen isotope ratio, has short analysis times (15-20 minutes per sample), and yields routine precisions of +/-0.1 per mil or better for samples as small as 1 mg. A mass spectrometer at Colgate will allow new and continuing interdisciplinary research projects in the Geology Department, including studies of granulite facies stable isotope thermometry and hygrometry, tectonic, magmatic, and fluid studies of the Grenville orogen, plume-ridge interaction in the Galapagos, and studies of paleoclimate in Alaska, New York, and Antarctica. All of this research will expose undergraduate students at Colgate to the use of stable isotopes in the geosciences, allowing hands-on exposure to modern instrumentation.***

0216179 Peck这项重大研究仪器（MRI）赠款的资金将用于为科尔盖特大学地质系购买一台双入口稳定同位素比质谱仪。 该仪器将主要用于通过在线激光扫描分析硅酸盐中的氧同位素比，以及离线分析通过燃烧或与酸反应制备的气体。激光粒度仪是分析耐火矿物分离物氧同位素比的首选方法，分析时间短（每个样品15-20分钟），对于小至1 mg的样品，常规精度为+/-0.1/mil或更高。 高露洁的质谱仪将使地质系能够开展新的和持续的跨学科研究项目，包括麻粒岩相稳定同位素温度和湿度测量研究、格伦维尔造山带的构造、岩浆和流体研究、加拉帕戈斯的地幔柱-山脊相互作用研究以及阿拉斯加、纽约和南极洲的古气候研究。 所有这些研究将使高露洁的本科生接触到地球科学中稳定同位素的使用，从而能够亲自接触现代仪器。*