MRI: Acquisition of an Ion Chromatograph-Inductively Coupled Plasma Mass Spectrometer (IC-ICP-MS) for Research and Undergraduate Education

该奖项由重大研究仪器(MRI)和化学研究仪器和设施(CRIF)计划支持。瓦萨学院的艾莉森·凯莫维茨教授和他的同事们正在获得一台离子色谱仪--电感耦合等离子体质谱(IC-ICP-MS)。通常，质谱学是用于鉴定和表征复杂基质中少量化学物种的关键分析方法之一。在一个典型的实验中，这些成分流入质谱仪，在那里它们被电离并测量离子质量。这种高度灵敏的技术可以检测和确定复杂混合物中的分子结构。使用电感耦合等离子体的电离允许检测以非常小的浓度存在的金属离子和几种非金属。此次收购加强了大学和地区的研究基础设施，因为这项技术可供纽约州哈德逊山谷地区的学生、教职员工和研究人员使用，包括马里斯特学院、纽约州立大学新帕尔茨分校、卡里研究所和纽约州环境保护局。这种质谱仪增强了所有级别的研究和教育。它有助于研究人员探索砷的转化机制，以及砷在当地水道中的释放、去向和运输。质谱仪还有助于确定卡茨基尔山中汞和铅的沉积历史和来源。该仪器用于在鱼类耳石中寻找金属示踪剂，以确定它们的产卵地点。此外，还利用IC-ICPMS建立了卡茨基尔土壤中的微量营养元素之间的关系。

This award is supported by the Major Research Instrumentation (MRI) and Chemistry Research Instrumentation and Facilities (CRIF) Programs. Professor Alison Keimowitz from Vassar College and colleagues are acquiring an ion chromatograph, inductively couple plasma mass spectrometer (IC-ICP-MS.) In general, mass spectrometry (MS) is one of the key analytical methods used to identify and characterize small quantities of chemical species in complex matrices. In a typical experiment, the components flow into a mass spectrometer where they are ionized and the ion masses are measured. This highly sensitive technique allows detection and determination of the structure of molecules in a complex mixture. The ionization using the inductively coupled plasma allows detection of metal ions and several non-metals present in very small concentrations. The acquisition strengthens the research infrastructure at the university and regional area since this technology is accessible to students, faculty and researchers in the Hudson Valley region of New York State including Marist College, the State University of New York New Paltz, the Cary Institute, and the New York State Department of Environmental Conservation.This mass spectrometer enhances research and education at all levels. It aids researchers in exploring the mechanisms of arsenic transformation as well as release, fate and transport of arsenic in local waterways. The mass spectrometer also helps determine the depositional history and provenance of mercury and lead in the Catskill mountains. The instrument is used to find metal tracers in fish otoliths so as to determine their spawning sites. In addition, the IC-ICP-MS is used to establish the relationship of micronutrients in Catskill soils.