Technician Support: The NEPTUNE Multi-Collector ICP-MS in the WHOI ICP Facility

该项目为在世界卫生组织ICPMS设施内开发关于多收集器ICPMS海王星的新的分析方案提供支持。这是一项为期三年的技术人员支助赠款的延续(第二阶段)，自2004年以来，该赠款促进了多种最先进的分析方案的开发。计划在2007-2008年供资期间开展以下分析工作：(1)使用镍作为一种新的海洋过程同位素示踪剂；(2)对大洋洲生物体斑晶中熔体包裹体的铅和锶同位素进行原位分析；(3)利用瞬变激光信号进行低水平Os同位素分析；(4)对硅酸盐和碳酸盐进行原位镁同位素分析；(5)检测海洋鱼类耳石中的富集态同位素标记；(6)海水的低水平铁同位素分析；(7)利用氢化物在线发生法测定天然Re的同位素变异性；以及(8)利用氢化物发生在线测定硒同位素。我们预计，海王星ICPMS在供资期间结束后将是一个自给自足的行动。

This project provides support for the development of new analytical protocols on the multicollector ICPMS NEPTUNE in the WHOI ICPMS Facility. It is the continuation (phase 2) of a three-year technician support grant that facilitated the development of multiple state-of-the-art analytical protocols since 2004. The following analytical developments are planned for the 2007-2008 funding period: (1) Using nickel as a new isotope tracer of oceanic processes, (2) In situ Pb and Sr isotope analysis of melt inclusions in OIB phenocrysts, (3) Low-level Os isotope analyses using transient laser signals, (4) In situ Mg isotope analysis of silicates and carbonates, (5) Detection of enriched isotope tags in marine fish otoliths, (6) Low-level Fe-isotope analysis of seawater, (7) Natural rhenium isotope variability, and (8) Selenium isotope determinations using online hydride generation. We anticipate that the NEPTUNE ICPMS will be a self-sustaining operation after the end of the funding period.