Capacity: FSML: Acquisition of an Isotope Ratio Mass Spectrometer with liquid chromatography and elemental analyzer interfaces at the Skidaway Institute of Oceanography

该奖项为Skidaway海洋学研究所（SkIO）购买稳定同位素比质谱仪系统提供资金。这些仪器是海洋科学和生态学领域的主力设备，因为它们提供的数据对理解食物网、营养和碳源以及碳循环等主题至关重要。这种新仪器比它所取代的设备具有更低的样品量要求，并允许在我们的设施中进行硫同位素的新测量。这些改进将使SkIO的科学家和学生能够以更高的空间和时间分辨率进行研究。新仪器也是理想的培训学生，无论是本科生和研究生，在稳定同位素分析进行动手实验和分析他们的数据在快速的方式。SKIO的稳定同位素设施是此类分析的区域中心，虽然正常做法是向用户收取费用以收回消耗品的成本，但以这种方式积累的资金的10%将用于向本科院校和区域团体提供免费分析和数据解释。 通过这种方式，更广泛的学生将获得该领域和一般海洋生态科学研究的直接经验。本项目提供资金购买一台能够测量碳、氮、氧和硫同位素的Thermo Delta Q光稳定同位素质谱仪。两个样品处理接口，一个LC-Isolink II和一个经过Nano-EA改进的元素分析仪（EA），取代了旧的和不支持的接口。新的LC接口将用于支持正在进行和未来的溶解有机物循环和组成以及海洋碳循环研究。新的EA将提供新的研究方向，包括使用单个微型浮游动物测量和HPLC分离物的化合物特异性分析的食物网研究。该设施向主要在格鲁吉亚沿海沿着进行研究的用户群提供快速反应测量，并向来自南美洲和欧洲的科学家和学生提供服务。新仪器的半自动化性质为学生培训和研究提供了极好的机会，因此已拨出资金和仪器时间供服务不足的团体和机构使用。该奖项由生物基础设施部颁发，由海洋科学部地球科学理事会支持。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

This award provides funds to purchase a Stable Isotope Ratio Mass spectrometer system at the Skidaway Institute of Oceanography (SkIO). Such instruments are workhorse devices in the Marine science and Ecology fields, as they provide data crucial to understanding such subjects as food webs, nutrient and carbon sources, and carbon cycling. This new instrumentation has significantly lower sample size requirements than the equipment it is replacing, and allows for new measurements of sulfur isotopes at our facility. Together these improvements will allow scientists and students at SkIO to conduct research at finer spatial and temporal resolutions. The new instrument is also ideal for training students, both undergraduate and graduate, in stable isotope analyses by conducting hands on experiments and analyzing their data in rapid fashion. SkIO’s stable isotope facility is a regional hub for such analyses, and while normal practice is to charge users to recover costs for expendables, 10% of the funds accrued in this manner will be used to provide no-cost analyses and data interpretation to undergraduate institutions and regional groups. In this manner a broader range of students will gain direct experience in this field and in ecological marine science studies in general.This project provides funds to purchase a Thermo Delta Q Light Stable isotope Mass Spectrometer capable of Carbon, Nitrogen, Oxygen and Sulfur Isotope measurements. Two sample processing interfaces, a LC-Isolink II and an elemental analyzer (EA) with Nano-EA modifications, replace older and non-supported interfaces. The new LC interface will be used to support ongoing and future studies in dissolved organic matter cycling and composition as well as oceanic carbon cycling. The new EA will provide for new research directions, including food web studies using individual micro-zooplankton measurements and compound-specific analyses on HPLC isolates. The facility provides rapid-response measurements to a user base primarily conducting research along the Georgia coast and has also provided services to scientists and students from South America and Europe. The semi-automated nature of the new instruments allows for excellent opportunities for student training and research, therefore funds and instrument time have been set aside for access by underserved groups and institutions. This award by the Division of Biological Infrastructure is supported by the Directorate for Geosciences, Division of Ocean Sciences.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.