Purchase of an Inductively Coupled Plasma Mass Spectrometer

俄勒冈州州立大学将获得部分资金， 感应耦合等离子体质量的获取 质谱仪（ICP-MS）。 这种新的分析能力将 在海洋学系内设立，供广泛使用 在大学里。 ICP-MS是一种相对较新的技术 这在分析许多类型的地球物理中是有用的。 大大方便了检测 某些元素，如钡、钴和贵金属。 样品在蒸发后被引入氩等离子体中， 通过包括激光激发在内的几种过程之一。 然后通过质谱仪对等离子体进行二次采样， 分离成离散的质量区域，并集中在一个 电子倍增器检测器 该仪器可以检测到更多 浓度低于十亿分之一的70多种元素 范围，并能够测量主要和微量元素 同时，减少了分析时间。 ICP-MS 生成质谱，其灵敏度和多功能性 适用于广泛的科学应用 从地球化学到古海洋学再到陶瓷 化学. 新仪器将服务于一些NSF- 赞助的研究人员 大学和美国。 部能源部门正在提供大量的成本分摊， 建立这种能力。

Oregon State University will receive partial funding for acquisition of an inductively-coupled plasma mass spectrometer(ICP-MS). This new analytical capability will be established within the Dept, of Oceanography for broad use within the University. ICP-MS is a relatively new technology that is useful in the analysis of many types of geophysical fluid and solid samples and greatly facilitates the detection of certain elements such as barium, cobalt, and noble metals. Samples are introduced into an argon plasma after vaporiza- tion by one of several processes including laser excitation. The plasma is then subsampled by the mass spectrometer, separated into discrete mass regions, and focused onto an electromultiplier detector. The instrument can detect more than 70 elements in the sub-part-per-billion concentration range and is able to measure major and trace elements simultaneously, thereby reducing analysis time. ICP-MS generates a mass spectrum and its sensitivity and versatility lends itself to a wide range of scientific applications ranging from geochemistry, to paleooceanography to ceramic chemistry. The new instrument will serve a number of NSF- sponsored investigators at OSU. The University and the U.S. Dept. of Energy are providing substantial cost-sharing for the establishment of this capability.