MRI RAPID: Development of a gas preparation system for the triple isotopic composition of dissolved oxygen and O2/Ar in the northern Gulf of Mexico oil spill region

PI要求MRI快速资助开发一种气体制备系统(GPS)，该系统将完成O2、Ar和N2的提取和纯化，以进行高精度的同位素和气体比率分析。全球定位系统还没有商业用途，将按照Barkan和Luz(2003)的设计进行开发，将极大地提高分析O2和气体比率的三个同位素组成的样本的效率和总数。长期了解墨西哥湾北部和其他受石油泄漏影响的地区的缺氧情况将提高社会？S预测和更好地应对这场灾难和类似灾难的生态后果的能力。在这项建议中开发的仪器将通过合作、分包合同和我们一年两次的稳定同位素生物地球化学短期课程向密歇根州立大学和外部研究人员提供。PI在BASL的研究生和本科生参与方面有着广泛的记录，并得到了各种来源的支持。

The PI requests MRI RAPID funding to develop a gas preparation system (GPS) that will accomplish the extraction and purification of O2+Ar and N2 for high precision isotope and gas ratio analysis. The GPS is not commercially available, will be developed following the design of Barkan and Luz (2003), and will greatly increase the efficiency and total numbers of samples that can be analyzed for the triple isotopic composition of O2 and gas ratios.Broader Impacts A long term understanding of hypoxia in the Northern Gulf of Mexico and other regions impacted by oil spills will enhance society?s ability to predict and better respond to the ecological consequences of this and similar disasters. The instrumentation developed in this proposal will be available to MSU and outside researchers through collaborations, subcontracts and our biannual short course on Stable Isotope Biogeochemistry. The PI's have an extensive track record for involving graduate and undergraduate students in the BASL with support from a variety of sources.