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

该奖项由主要研究仪器（MRI）和化学研究仪器和设施（CRIF）计划支持。瓦萨学院的Alison Keimowitz教授及其同事正在购买离子色谱仪，电感耦合等离子体质谱仪（IC-ICP-MS）。一般来说，质谱（MS）是用于识别和表征复杂基质中少量化学物质的关键分析方法之一。在典型的实验中，组分流入质谱仪，在那里它们被电离并测量离子质量。这种高灵敏度的技术可以检测和确定复杂混合物中分子的结构。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，因为该技术可供纽约州哈德逊河谷地区的学生、教师和研究人员使用，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部。它有助于研究人员探索砷转化的机制以及砷在当地水道中的释放、归宿和运输。质谱仪还有助于确定卡茨基尔山脉汞和铅的沉积历史和来源。 该仪器用于寻找鱼类耳石中的金属示踪物，以确定其产卵地点。此外，IC-ICP-MS被用来建立卡茨基尔土壤中微量元素的关系。

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.