CORE--TRACE METAL ANALYSIS

痕量金属分析核心是一种共享资源，用于对两种金属及其物种进行最先进的痕量和超微量分析。核心的中心功能是磁扇区高分辨率电感耦合等离子体质谱仪(HR-ICPMS)，它提供无与伦比的检测极限、无干扰的准确分析，同时允许高样品吞吐量。此外，ICPMS能够对具有一种以上稳定同位素的元素进行精确的同型比稀释分析，进行示踪实验，以及对具有一种以上稳定同位素的元素进行高精度的同位素稀释分析。与色谱技术相结合，HR-ICPMS是针对不同金属物种的最灵敏的特定元素检测技术。达特茅斯学院SBRP计划头四年的方法开发为许多系统中的各种不同元素及其物种提供了高度复杂和成本效益高的分析方法。考虑到新的研究目标，未来可以提供进一步的发展。

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.