Laser-ablation inductively coupled plasma mass spectrometer for geofluids and geomaterials research

激光烧蚀电感耦合质谱（LA-ICP-MS）分析固体材料和流体和熔融包裹体在地球和材料科学中得到广泛应用。现代强大的准分子激光烧蚀系统与最先进的快速和高灵敏度ICP质谱仪相结合，促进了流体包裹体和矿物中痕量金属的多元素分析的根本突破，正如我们在成矿地质流体中金属浓度和主要经济矿床形成研究的跟踪记录所证明的那样。因此，我们申请一个新的LA-ICP-MS系统的资金组成的193 nm准分子激光烧蚀系统适用于流体包裹体研究（可与红外光学应用于不透明的主机矿物）和下一代快速和敏感的四极ICP-MS仪器。这将使人们有可能在地质流体和地质材料的前沿研究，包括在地壳流体中卤素的来源和分配，在热液系统中的关键金属的运输和沉积，世界级矿床的形成，不透明的矿石矿物中的矿石金属的浓度，盐系统中流体的化学，以及烃流体中微量金属和卤素的行为。

Laser-ablation inductively coupled mass spectrometry (LA-ICP-MS) analysis of solid materials and fluid and melt inclusions is becoming widely used in Earth and Materials Sciences. Modern powerful excimer laserablation systems coupled to state-of-the-art fast and high-sensitivity ICP mass spectrometers facilitate fundamental breakthroughs in the multi-element analysis of fluid inclusions and of trace metals in minerals, as demonstrated by our track record in research on metal concentrations in ore-forming geological fluids and the formation of major economic mineral deposits. We therefore apply for a funding for a new LA-ICP-MS system composed of an 193 nm excimer laser-ablation system suitable for fluid inclusion research (upgradable with infrared optics for application to opaque host minerals) and a next-generation fast and sensitive quadrupole ICP-MS instrument. This will make it possible to perform frontier research in geofluids and geomaterials, including the sources and partitioning of halogens in crustal fluids, the transport and deposition of critical metals in hydrothermal systems, the formation of world-class ore deposits, the concentration of ore metals in opaque ore minerals, the chemistry of fluids in salt systems, and the behavior of trace metals and halogens in hydrocarbon fluids.