Acquisition of an Automated Mass Spectrometer System for 15N and 13C Analysis

该项目为购置海洋仪器提供支持，这些仪器将放在一个共用设备池中，供南加州大学的研究人员使用。一个现代化的台式自动化质谱仪将被收购，以取代20年的旧模型，不再实用的维护和操作。海水中营养物和其他化学成分的浓度是许多生物和化学海洋学研究的关键因素。对各种营养物质进行精确而快速的分析是一个复杂的过程，但分析仪器的最新进展使科学家能够在海上和越来越小的样本量下进行许多化学测定。新的自动分析仪将作为实验室和航海设备使用。包括全球海洋通量研究在内的几个正在进行和计划中的研究项目将受益于新仪器提供的更高的灵敏度和样品吞吐量。

This project provides support for the acquisition of oceanographic instrumentation that is to be placed in a pool of shared use equipment and made available to investigators at the University of Southern California. A modern benchtop automated mass spectro- meter will be acquired to replace a 20-year old model that is no longer practical to maintain and operate. The concentrations of nutrients and other chemical constituents of seawater are key elements in numerous biological and chemical oceanographic studies. The precise and rapid analysis of various nutrients is a complex procedure, but recent advances in analytical instrumenta- tion have enabled scientists to make many chemical determinations at sea and with increasingly smaller sample sizes. The new auto- analyzer will be operated as a laboratory and seagoing facility. Several ongoing and planned research projects including Global Ocean Flux Study will benefit from the increased sensitivity and sample throughput provided by the new instrument.