CORE--TRACE METAL ANALYSIS

痕量金属分析核心是一种共享资源，用于最先进的痕量和超痕量分析金属及其种类。核心的核心特征是一个磁性扇形高分辨率电感耦合等离子体质谱计（HR-ICPMS），它提供了无与伦比的检测限，无干扰的准确分析，同时允许高样品吞吐量。此外，ICPMS能够对具有多个稳定同位素的元素进行精确的同型比稀释分析，示踪实验以及对具有多个稳定同位素的元素进行高精度的同位素稀释分析。结合色谱技术，HR-ICPMS是对不同金属种类最敏感的元素特异性检测技术。达特茅斯学院SBRP项目前四年的方法发展为许多系统中的各种不同元素及其物种提供了高度复杂且具有成本效益的分析方法。进一步的发展可以在未来提供新的研究目标。

The Trace Metal Analysis Core is a shared resource for state-of-the-art trace and ultratrace analyses of both metals and their species. The central feature of the core is a magnetic sector High Resolution Inductively Coupled Plasma Mass Spectrometer (HR-ICPMS) which provides unsurpassed detection limits, interference free accurate analyses while allowing high sample throughput. Additionally, ICPMS is capable of precise isotype ratio dilution analyses for elements with more than one stable isotope, tracer experiments as well as highly accurate isotope dilution analyses for elements with more than one stable isotope. Combined with chromatographic techniques, HR-ICPMS represents the most sensitive element-specific detection technique for different metal species. Method developments during the first four years of the SBRP program at Dartmouth College provided highly sophisticated and cost- effective analytical procedures for a variety of different elements and their species in a number of systems. Further developments can be provided in the future given new research objectives.