Technician Support for Stable Isotopic Research Facility (SIRF) at Indiana University

0413575里普利这笔赠款将支持在稳定同位素研究设施（SIRF）在印第安纳州大学在三年内的技术职位。 研究技术员的职责将包括：1）培训实验室设施的所有用户，2）维护质谱仪和相关气体制备系统，3）开发新的分析技术，以及4）分析非常规样品，特别是通过激光烧蚀方法产生的样品。SIRF拥有四个稳定同位素比质谱仪和各种相关的在线样品制备设备，包括用于硫同位素分析的激光质谱系统，用于碳和氢同位素分析的高温燃烧炉和相关气相色谱系统，用于硫，碳，氧，氢和氮分析的元素分析仪，水-CO2平衡和水到氢的转化设备，和自动碳酸盐-CO2制备系统。 除了在线外围系统，SIRF还包含几个传统的真空抽气系统。 这些包括一个CO2激光蒸馏系统，一个传统的BrF 5提取线，用于制备EA和双入口分析的大型标准样品的SO2线，高温和低温连续碳提取线，用于提取包裹体流体和气体的系统，以及用于分离各种硫物质的色谱系统。 技术人员的支持是必不可少的，以确保该实验室继续作为一个一流的国家中心的稳定同位素分析和培训。 在过去的24个月里，30多名访问研究人员使用了SIRF的实验室设施。 新的分析技术的发展，特别是那些旨在减少样本量，是至关重要的，以推进我们对重要的地球过程的理解。 一个专门的技术人员为教师和学生的研究提供了宝贵的支持，并在分析技能的发展中发挥着至关重要的作用，这是未来的研究人员。 该职位的研究技术人员还将监督兼职，项目特定的实验室技术人员，他们通过个人研究赠款（例如NSF，NASA，DOE）获得支持。

0413575RipleyThis grant will support a technical position in the Stable Isotope Research Facility (SIRF) at Indiana University over a three-year period. Duties of the research technician will include: 1) training of all users of laboratory facilities, 2) maintenance of mass spectrometers and associated gas preparation systems, 3) development of new analytical techniques, and 4) analyses of non-routine samples, especially those produced by laser ablation methods. The SIRF houses four stable isotope ratio mass spectrometers and a variety of associated on-line sample preparation devices including a laser fluorination system for sulfur isotopic analyses, high-temperature combustion furnaces and related gas chromatographic systems for carbon and hydrogen isotopic analyses, elemental analyzers for sulfur, carbon, oxygen, hydrogen, and nitrogen analyses, water-CO2 equilibration and water to hydrogen conversion devices, and an automated carbonate-CO2 preparation system. In addition to on-line peripheral systems The SIRF contains several traditional vacuum extraction systems. These include a CO2 laser fluorination system, a conventional BrF5 extraction line, SO2 lines for the preparation of large standard samples for both EA and dual inlet analyses, high- and low-temperature sequential carbon extraction lines, a system for the extraction of inclusion fluids and gases, and chromatographic systems for the isolation of various sulfur species. Technician support is essential to ensure that this lab continues as a first-rate national center for stable isotopic analyses and training. Over the past 24 months more than 30 visiting researchers have utilized the SIRF laboratory facilities. The development of new analytical techniques, particularly those aimed at reducing sample size, is critical for advancing our understanding of important earth processes. A dedicated technician provides invaluable support for faculty and student research, and plays a pivotal role in the development of analytical skills that are essential for tomorrow's researchers. The research technician in this position will also supervise part-time, project specific, laboratory technicians who are supported through individual research grants (e.g. NSF, NASA, DOE).***