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 Schimmelman这笔赠款支持购买用于连续流动操作的气源稳定同位素比质谱仪(CF-irmMS)以及相关的样品引入外围设备，以便分析各种自然材料中的多种稳定同位素比，包括有机物、碳酸盐、含水矿物和水。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(均为最新型号的芬尼根MAT 252S)。一个是最近由EAR/IF计划(美国国家科学基金会-9726264)资助的，致力于分析硫化物矿石的同位素组成，另一个是稍早的(1991年)，致力于碳酸盐碳的分析。新仪器将极大地扩展这个已经装备精良的部门目前的同位素能力，增加在极小的有机物样品和高吞吐量的天然水中进行高精度氢/氢(H/D)比率同位素分析的能力。所要求的外围设备还将允许调查各种有机材料化合物的稳定同位素特征。该仪器将支持包括阿恩特·希梅尔曼、丽莎·普拉特、埃德·里普利、彼得·鲍尔和杰夫·怀特在内的众多印第安纳大学教职员工及其学生在古气候学、海洋学、生态学和水文学领域的研究努力。在这个实验室中增加一台CF-IRMMS无疑将有助于进一步吸引这一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印第安纳大学的科学家和他们的学生进行富有成效的合作。***

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. ***