Technician Support: Laser Ablation ICP-MS Facility

EAR-0447237该奖项将支持一名全职技术人员在即将成立的弗吉尼亚理工大学地球科学系激光消融电感耦合等离子体质谱仪实验室维护和操作设备。建立LA-ICPMS实验室的资金最近由美国国家科学基金会重大研究仪器计划授予了PI。实验室的仪器和操作规程是专门为分析流体和熔体包裹体而设计的。2002年10月，在科罗拉多州丹佛市举行的由美国国家科学基金会赞助的题为《矿床系统的地质和地球化学研究机会》的研讨会上，一个用于分析流体和熔体包裹体的激光消融电感耦合等离子体质谱仪实验室被确定为高度优先的研究需求。建立一个用于流体和熔体包裹体分析的激光消融电感耦合等离子体质谱实验室得到了美国地球科学界的广泛支持，来自学术和政府实验室的34名领先研究人员的支持函证明了这一点。将在弗吉尼亚理工大学安装的系统将包括一个193 nm的ARF准分子激光器和一个电感耦合等离子体质谱仪。最符合流体包裹体分析要求的激光系统是Lambda Physik制造的Geolas+。这将与安捷伦技术公司的7500cs电感耦合等离子体质谱仪联用。该仪器将用于测定合成和天然流体和熔融包裹体中的主要、次要和痕量元素，并将提供给所有需要流体和熔融包裹体数据的研究人员。弗吉尼亚理工学院地球科学系一直致力于推广、教育和参与代表性不足的群体。激光消融电感耦合等离子体质谱实验室虽然与这项提议没有具体关系，但未来将用于为高中理科教师设计的暑期项目。这项计划已经在弗吉尼亚理工大学校园成功运作了几年，并将在未来几年扩大到包括进入地球科学部更广泛的设施。拥有一名专门从事激光消融电感耦合等离子体质谱实验室的全职技术人员也将为研究生、博士后研究人员和其他机构的教职员工进入实验室提供便利，并将在总体上为未来教授的培训做出贡献。

EAR-0447237BodnarThis award will support a full-time technician to maintain and operate equipment in the soon to be established laser ablation ICP-MS laboratory in the Department of Geosciences at Virginia Tech. Funding to establish the LA-ICP-MS laboratory was recently awarded to the PI by the NSF Major Research Instrumentation Program. The instrumentation and operational protocol for the laboratory are designed specifically for analysis of fluid and melt inclusions. A laser ablation ICP-MS laboratory for analysis of fluid and melt inclusions was identified as a highpriority research need during an NSF-sponsored workshop entitled Research Opportunities in the Geology and Geochemistry of Mineral Deposit Systems that was held in Denver, Colorado, in October, 2002. Establishment of a laser ablation ICP-MS laboratory for fluid and melt inclusion analysis has broad support across the geosciences in the U.S., as documented by letters of support from 34 leading researchers from academic and government labs. The system to be installed at Virginia Tech will include a 193 nm ArF excimer laser combined with an ICP-MS. The laser system that best meets the requirements for fluid inclusion analysis is the GeoLas + manufactured by Lambda Physik. This will be coupled to an Agilent Technologies 7500cs ICP-MS. This instrument will be used to determine the major, minor and trace elements in both synthetic and natural fluid and melt inclusions, and will be available to all researchers requiring such data from fluid and melt inclusions.The Department of Geosciences at Virginia Tech maintains a strong commitment to outreach, education and participation of under-represented groups. While not specifically related to this proposal, the laser ablation ICP-MS laboratory will in the future be used in summer programs designed for high school science teachers. This program has operated successfully on the Virginia Tech campus for several years, and will be expanded in future years to include access to a wider range of facilities within the Department of Geosciences. Having a full-time technician dedicated to the laser ablation ICP-MS laboratory will also facilitate access to the lab by graduate students, post doctoral researchers and faculty from other institutions and will contribute in a general way to training of the future professoriate.