Laser ablation system for coupling to ICPMS instruments

在这个提案中，科隆大学地质和矿物学研究所申请资助一个激光烧蚀系统，我们建议将其与我们现有的多收集器ICPMS和四极杆ICPMS系统耦合。这项建议的领导小组是科隆的地球化学/宇宙化学小组，但该研究所的其他三个工作组也将使用激光烧蚀装置。提出的激光烧蚀系统将用于不同地质材料的微量元素和同位素测量，包括陨石、陆相硅酸盐、蒸发物和实验电荷。地球化学/宇宙化学组的研究重点是高温地球化学、地质年代学、早期地球演化和宇宙化学。这一研究范围最近已扩展到实验岩石学和低温地球化学（例如，研究蒸发岩）。参与这项建议的其他研究小组有他们的研究重点，例如古气候学和火山玻璃的温度年代学。科隆地球科学系需要一个新的激光烧蚀系统，因为与邻近的研究机构不同，只有科隆的激光系统可以同时与多收集器ICPMS和四极杆ICPMS耦合。此外，由于第三方资助项目的增加，对科隆激光消融测量的需求不断增加，而合作实验室的仪器时间已无法满足这些需求。

In this proposal, the Institute for Geology and Mineralogy at the University of Cologne applies to fund a laser ablation system that we propose to couple to our existing Multicollector ICPMS and Quadrupole ICPMS systems. The leading group of this proposal is the geochemistry/cosmochemistry group at Cologne, but the laser ablation device will also be used by three other working groups at the institute. The proposed laser ablation system will be employed for trace element and isotope measurements of different geomaterials, including meteorites, terrestrial silicates, evaporates and experimental charges. The research focus of the geochemistry/cosmochemistry group is on high temperature geochemistry, geochronology, early Earth evolution and cosmochemistry. This research spectrum has recently been expanded to experimental petrology and low temperature geochemistry (e.g., studying evaporites). The other research groups involved in this proposal have their research foci, e.g., on paleoclimatology and tephrochronology on volcanic glasses. A new laser ablation system within the Earth science department at Cologne is needed, because, unlike at neighbouring research institutions, only at Cologne the laser system can be coupled to both Multicollector ICPMS and Quadrupole ICPMS. Moreover, due to the increase in third party funded projects, there is an increasing demand for laser ablation measurements at Cologne that can no longer be covered by available instrument time at collaborating laboratories.