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

0731794 Ripley该补助金为印第安纳州大学稳定同位素研究设施（SIRF）的全职实验室经理/技术员提供部分支持。研究技术员的职责包括：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，特别是通过激光消融方法产生的样品。该实验室已经扩大，现在拥有四台稳定同位素比质谱仪，以及各种相关的在线样品制备设备。这些设备包括激光燃烧系统、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-氢转化装置以及自动化碳酸盐-CO2制备系统。 除了在线外围系统外，实验室还包含几个传统的真空抽气系统。这些包括一个CO2激光器萃取系统，一个传统的BrF 5萃取线，一个用于制备SF6 SO2线的萃取系统，用于制备EA和双入口分析的大型标准样品，高温和低温连续碳萃取线，一个用于萃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。 研究技术员将参与新分析方法的开发，以及本科生，研究生和博士后学生的培训。研究技术员的活动与加强研究生研究活动密切相关。

0731794RipleyThis grant provides partial support for a full time lab manager/technician for the Stable Isotopic Research Facility (SIRF) at Indiana University. Duties of the research technician 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. This laboratory has expanded, and now houses four stable isotope ratio mass spectrometers with a variety of associated on-line sample preparation devices. These include a laser fluorination system, 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 devises, and an automated carbonate-CO2 preparation system. In addition to on-line peripheral systems, the labs contain several traditional vacuum extraction systems. These include a CO2 laser fluorination system, a conventional BrF5 extraction line, a fluorination system for the preparation of SF6 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. The research technician will be involved in the development of new analytical methods, and the training of undergraduate, graduate, and post-doctoral students. The activities of the research technician are closely tied to the enhancement of graduate research initiatives.