Acquisition of an Isotope Ratio Monitoring Mass Spectrometer for H, O, C, and N in Waters, Hydrous Minerals, Carbonates, and Organic Materials, and an Accelerated Solvent Extractor

0214265 Schimmelmankill资助支持采购一台配置为连续流操作（CF-irmMS）的气源稳定同位素比质谱仪，并配备相关的进样外围设备，可用于分析各种天然物质（包括有机物、碳酸盐、含水矿物和水）中的多种稳定同位素比。 具体的进样装置将包括元素分析仪（EA）、气相色谱仪（GC）和自动碳酸盐制备装置。 新的CF-irmMS将补充印第安纳州大学地质科学系现有的两台稳定同位素比质谱仪（均为最新型号Finnegan MAT 252）。 其中一台最近由美国国家科学基金会/IF计划（NSF-9726264）资助，由共同研究员艾德·里普利（Ed Ripley）负责，专门用于分析硫化物矿石的同位素组成，另一台稍旧（1991年建成），专门用于分析碳酸盐碳。 新仪器将大大扩展这个已经装备精良的部门目前的同位素能力，增加了在极少量有机物和天然沃茨样品中进行高通量氢/氘（H/D）比高精度同位素分析的能力。 所要求的外围设备还将使人们能够调查有机材料的个别化合物的稳定同位素特征。该仪器将支持众多IU教师的研究工作，包括Arndt Schimmelmann，丽莎普拉特，艾德里普利，彼得绍尔和杰夫白色和他们的学生的研究跨越古气候学，海洋学，生态学和水文学领域。 该实验室增加CF-irmMS无疑将进一步吸引该设施对一些活跃的地球科学家的吸引力，并可能导致未来与这些IU科学家及其学生的富有成效的合作。 ***

0214265SchimmelmannThis grant supports the acquisition of a gas source stable isotope ratio mass spectrometer configured for continuous flow operation (CF-irmMS) and with associated sample introduction peripherals that will allow for the analysis of multiple stable isotopic ratios in a wide range of natural materials including, organic matter, carbonates, hydrous minerals and water. Specific sample inlet devices will include an elemental analyzer (EA), a gas chromatograph (GC), and an automated carbonate preparation device. The new CF-irmMS will complement two existing stable isotope ratio mass spectrometers(both late model Finnegan MAT 252s) in the Geological Sciences department at Indiana University. One was recently funded by the EAR/IF program (NSF-9726264) to co-PI Ed Ripley and is dedicated to the analysis of the isotopic composition of sulfide ores and the other is somewhat older (vintage 1991) and is dedicated to analysis of carbonate carbon. The new instrument will greatly expand the current isotopic capabilities of this already well equipped department by adding the ability to make high precision isotopic analyses of hydrogen/deuterium (H/D) ratios in extremely small samples of organic matter and natural waters with high throughput. The requested peripheral devices will also allow for investigation of the stable isotopic signatures of individual compounds of organic materials. The instrument will support the research efforts of numerous IU faculty including Arndt Schimmelmann, Lisa Pratt, Ed Ripley, Peter Sauer and Jeff White and their students for research spanning the fields of paleoclimatology, oceanography, ecology and hydrology. The addition of a CF-irmMS to this lab will undoubtedly serve to further the attraction of this facility to a number of active geoscientists and will likely lead to future productive collaborations with these IU scientists and their students. ***