Acquisition of an Excimer Laser, Quadrupole ICPMS and Microsampler for UC Davis

该合同提供为期24个月的资金，用于获得准分子激光和四极电感耦合等离子体质谱计（ICP-MS），用于高分辨率的古气候元素和同位素测量。所要求的配置将允许分析广泛的元素和同位素套件。可以分析各种地质材料，仪器提供快速（0.5秒/分析）的样品吞吐量。该激光器将提供超高分辨率（微米到纳米的空间尺度），并且该系统将具有最小的样品间存储问题。准确度和精密度可与湿等离子体ICP-MS系统相媲美。该系统将特别适用于测量金属/钙（例如Mg/Ca， Ba/Ca， B/Ca等）和稳定同位素（碳和氧）。研究将主要集中在古气候和古海洋学问题上，但仪器将适用于许多与地球科学相关的主题。新仪器将成为研究生、博士后和优秀本科生的宝贵训练工具。该仪器将用于PI和co -PI在研究生和本科生的地球化学课程、本科生的研究项目和毕业论文的教学。这种最先进的仪器，在美国是独一无二的，将使pi，学生和博士后保持在新的研究领域和技术的最前沿。这台仪器将搬到最近装修过的实验室里。pi将共同负责操作和维护。赠款收入和充值资金将用于维护仪器和支持技术人员。政府将为主要维修提供资金。＊＊＊

0946297 SperoThis award provides funding over 24 months to acquire an excimer laser and quadrupole inductively coupled plasma mass spectrometer (ICP-MS) for high-resolution paleoclimatological elemental and isotopic measurements. The requested configuration will allow analyzing a broad suite of elements and isotopes. Various geological materials can be analyzed and the instrument offers a rapid (0.5 sec/analysis) sample throughput. The laser will offer ultra-high resolution (micron to nanometer spatial scale), and the system will have minimal inter-sample memory problems. Accuracy and precision will be comparable to wet plasma ICP-MS systems. The system will especially useful for measuring Metal/Ca (e.g. Mg/Ca, Ba/Ca, B/Ca etc.) and stable isotopes (carbon and oxygen). Research will focus primarily on paleoclimatic and paleoceanographic questions but the instrumentation will be applicable to many geoscientific-related themes. The new instrument will be a valuable training tool for graduate students, post-docs and exceptional undergraduates. The instrument will be used for teaching by the PI and Co-PIs in graduate and undergraduate geochemistry courses and undergraduate research projects and senior theses. This state-of-the-art instrumentation, unique in the US will allow the PIs, students and postdocs to remain at the forefront of new research areas and techniques. The instrument will be moved into a recently-renovated laboratory space. The PIs will collectively be responsible for operation and maintenance. Grant income and recharge funds will be used to maintain the instrument and support a technician. The administration will fund major repairs. ***