Nd YAG Laser for Inductively Coupled Plasma Mass Spectrometry

本建议书用于购买213 nm Nd YAG* 激光取样系统，用于UVic ICP-MS* 实验室的固体微量元素微量分析。所需的仪器是由Ligero Techical Services提供的New Wave Research NWR 213系统 *。该仪器将通过我们在此寻求的NSERC* 资金的组合获得资金，其中包括我们自己从实验室用户费 * 节省中提供的4万美元捐款，以及部门和外部支持资金。新器械将取代一台已使用12年的老化器械，该器械已经历多次维修，并且越来越难以获得零件。新的NWR 213系统具有我们需要的许多现代 * 功能，以开发固体（矿物、毛发、贝壳、耳石、文物）中的高分辨率、二维微量元素 * 映射，这将告知 * 空间和时间变化它们形成的环境条件。NWR 213设备具有光束整形能力，可在直线或弯曲路径中进行方形 * 激光烧蚀，从而实现矿物或生物 * 材料中微量元素的成分成像，与生长带正交，且没有光束重叠。此外，NWR 213系统的2容积 * 样品室具有更小的气体采样容积，气体冲洗时间快20倍，因此灵敏度更高。 一个可定制的 * 样品保持器区域，提供灵活的样品选择。这些特征使得二维微量元素绘图实用、准确和精确。更高的灵敏度对于提高我们在地质年代学和地球化学方面的能力和潜力也是必要的。购买13 nm Nd YAG激光采样系统是及时的，允许我们的旧仪器以更高的价值折价，并且是谨慎的，* 避免了我们的用户费用基金投资于频繁和耗时的 * 维修我们的老化仪器。我们自己的投资占购买总额的30%，表明我们致力于更现代化的最先进的分析技术，这将进一步推动地质学，环境科学，地质年代学，海洋学和生物学的下一代研究人员的培训。

This proposal is for purchase of a 213 nm Nd YAG*laser sampling system for trace element microanalysis of solids in the UVic ICP-MS*laboratory. The desired instrument is a New Wave Research NWR213 system*supplied by Ligero Techical Services. The instrument is to be funded through a combination of NSERC*funds we seek herein, with $40K of our own contributions from lab user fee*savings, and departmental and external support funds. The new device is to replace an aging 12 year old instrument, that has undergone many repairs and is becoming difficult to source parts for. The new NWR213 system has many modern*features we require to develop high resolution, 2-dimensional trace element*mapping in solids (minerals, hair, shells, otoliths, artefacts) that will inform*spatial and temporal changes in the environmental conditions under which they*form. The NWR213 device has beam-shaping capability that allows for square-shaped*laser ablations, in either straight or sinuous paths, allowing compositional imaging of trace elements in minerals or biological*materials orthogonal to growth bands with no beam overlap. In addition, the 2-volume*sample cell chamber of the NWR213 system has a smaller gas sampling volume, giving a 20-fold faster gas washout time and thus much higher sensitivity. A customizable*sample holder area for flexible sample options. These features make 2-D trace*element mapping practical, accurate, and precise. Higher sensitivity is also necessaryto advance*our capabilities and potential in geochronology and geochemistry. Purchasing 13 nm Nd YAG laser sampling system is timely, allowing for higher valued trade-in of our older instrument, and prudent,*by avoiding investment of our user fee funds toward frequent and time-consuming*repairs of our aging instrumentation. The investment of our own*contributions that total to ~30% of the purchase, shows our commitment to more modern*state-of-the-art analytical technology that will further advance the training of the next*generation researchers in geology, environmental science, geochronology, oceanography*and biology.