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 RAPID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，用于高精度同位素和气体比分析。GPS还没有商业化，将按照Barkan和Luz（2003）的设计进行开发，并将大大提高效率和样品总数，可以分析O2和气体比率的三重同位素组成。更广泛的影响对墨西哥湾北部和其他受石油泄漏影响地区缺氧的长期了解将促进社会发展？美国预测和更好地应对这次和类似灾难的生态后果的能力。本提案中开发的仪器将通过合作，分包合同和我们每年两次的稳定同位素生物地球化学短期课程提供给密歇根州立大学和外部研究人员。在各种来源的支持下，PI在BASL的研究生和本科生方面有着广泛的记录。

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.