Acquisition of a Stable Isotope Ratio Mass Spectrometer for Biogeochemical Research

0444610恩格尔这笔赠款支持收购稳定同位素比质谱仪（SIRMS）进行地质和生物材料的多元素分析在俄克拉荷马州大学（UO）。 最先进的SIRMS将取代18岁的Finnigan Delta E，后者仅限于手工离线制备样品中的碳和氧同位素分析。 新仪器将包括一个双入口和连续流接口、高温热解系统、H/D收集器和一个自动化样品制备模块。 新设施将允许对有机和无机材料中的C，O，N，H和S同位素进行快速，高容量分析。 SIRMS设施将支持教师和学生对海洋的古生代硫同位素历史的研究，从更新世到最近的北美鸟类类群的迁移模式和演变的研究，以及北美植被生态系统的进化动力学研究。***

0444610EngelThis grant supports acquisition of a stable isotope ratio mass spectrometer (SIRMS) to conduct multi-element analyses of geological and biological materials at the University of Oklahoma (UO). A state-of-the-art SIRMS will replace an eighteen-year-old Finnigan Delta E that is limited to isotopic analysis of carbon and oxygen in samples prepared manually, off-line. The new instrument will include a dual inlet and continuous flow interfaces, high temperature pyrolysis system, H/D collector, and an automated sample preparation module. The new facility will allow for rapid, high volume analysis of isotopes of C, O, N, H and S in both organic and inorganic materials. The SIRMS facility will support faculty and student research on the Phanerozoic sulfur isotopic history of the oceans, studies of the migratory pattern and evolution of North American bird taxa from Pleistocene to Recent, and studies of the evolutionary dynamics of North American vegetative ecosystems. ***