Acquisition of a Thermal Ionization Mass Spectrometer

购买热电离质谱仪

• 批准号: 8904573
• 负责人: Arthur Spivack
• 金额: $ 14.5万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-11-01 至 1990-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8904573&HistoricalAwards=false
• 关键词: Acquisition; Thermal; Ionization; Mass; Spectrometer

This award provides 56% of the funds required for the acquisition of a thermal ionization mass spectrometer that will be installed and operated at the Scripps Institution of Oceanography at the University of California in San Diego. The remaining 44% of the cost of the instrument will be provided by the institution. The instrument will be capable of analyzing both positive and negative ions and will have a mass resolution in excess of 430 so that systematics of the isotope geochemistry of boron can be investigated. The scientific questions to be resolved with boron isotope analysis include: (1) seawater-ocean crust chemical interchange, (2) the history of seawater composition, (3) the cycling of volatiles between the mantle and oceans, and (4) diagenesis of sediments.

该合同提供了购买热电离质谱计所需资金的56%，该质谱仪将在加州大学圣地亚哥分校的斯克里普斯海洋研究所安装和运行。其余44%的票据费用将由该机构提供。该仪器将能够分析正离子和负离子，质量分辨率将超过430，因此可以研究硼的同位素地球化学的系统学。硼同位素分析要解决的科学问题包括：(1)海水-洋壳化学交换，(2)海水组成的历史，(3)地幔和海洋之间的挥发分循环，(4)沉积物的成岩作用。