Acquisition of a Stable Isotope Ratio Mass Spectrometer and Supporting Instrumentation for Marine Biogeochemical and Paleoceanographic Studies [MRI/RUI]

购买用于海洋生物地球化学和古海洋学研究的稳定同位素比质谱仪和配套仪器 [MRI/RUI]

• 批准号: 0320940
• 负责人: Mark Altabet
• 金额: $ 36万
• 依托单位: University of Massachusetts, Dartmouth
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-01 至 2006-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0320940&HistoricalAwards=false
• 关键词: Acquisition; Stable; Isotope; Ratio; Mass

0320940AltabetThis Major Research Instrumentation award to the University of Massachusetts, Dartmouth supports acquisition of an isotope ratio mass spectrometer (IRMS), a high pressure liquid chromatograph (HPLC) and a quadrupole mass spectrometer (QMS) to continue and extend research into biogeochemistry and paleoceanography, emphasizing nitrogen cycling in the marine environment. The IRMS replaces an existing, aging and increasingly unreliable instrument, and is intended to improve throughput and reliability and maintain the necessary high precision this work requires. The IRMS system includes a continuous-flow interface and elemental analyzer for CNS, as well as a gas chromatograph for compound-specific analyses, and a gas handling system for nitrate. The HPLC will be mainly used for amino acid concentration analysis, extending the capabilities of the lab into a new area. The QMS will be used for two purposes. In the laboratory, it will be used to troubleshoot the IRMS preparation system, particularly to detect leaks. The second application is as a seagoing instrument for shipboard high precision gas ratio analysis, especially addressing N2/Ar. The instrumentation will be incorporated into teaching and research involving both undergraduate and graduate students at U Mass, both on the Dartmouth campus, and system-wide via the new Intercampus Graduate School of Marine Science and Technology. The award is supported by the Ocean Sciences Division of NSF.***

0320940阿尔塔巴特这一重大研究仪器奖授予马萨诸塞大学，达特茅斯大学支持购买一台同位素比质谱仪(IRMS)、一台高压液相色谱仪(HPLC)和一台四极质谱计(QMS)，以继续和扩展对生物地球化学和古海洋学的研究，强调海洋环境中的氮循环。IRMS取代了现有的、老化的和越来越不可靠的仪器，旨在提高吞吐量和可靠性，并保持这项工作所需的必要的高精度。IRMS系统包括用于CNS的连续流动接口和元素分析器，以及用于特定化合物分析的气相色谱仪，以及用于硝酸盐的气体处理系统。高效液相色谱法将主要用于氨基酸浓度分析，将实验室的能力扩展到一个新的领域。质量管理体系将用于两个目的。在实验室中，它将用于对IRMS准备系统进行故障排除，特别是用于检测泄漏。第二个用途是作为海上仪器，用于舰船高精度气体比分析，特别是解决N_2/Ar问题。该仪器将通过新的校际海洋科学与技术研究生院，在达特茅斯校区和全系统范围内纳入马萨诸塞州大学本科生和研究生的教学和研究。该奖项由美国国家科学基金会海洋科学部资助。*