Equipment and Facilities at a Marine Laboratory

海洋实验室的设备和设施

• 批准号: 9311133
• 负责人: John Burris
• 金额: $ 7.63万
• 依托单位: Marine Biological Laboratory
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-02-15 至 1996-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9311133&HistoricalAwards=false
• 关键词: Equipment; Facilities; Marine; Laboratory

ABSTRACT: 9311133, PI-Burris: This project will assist the Marine Biological Laboratory in the acquisition of laboratory and multi user equipment that will benefit resident and visi ting scientists and the educational program. A metabolic gas analysis system will be acquired consisting of two components that will enable the routine, ultra high precision measurement carbon dioxide and oxygen in aqueous samples. The two components of the system are 1) a computer controlled dissolved oxygen (DO) titrator, and 2) an ultra high precision K1 dissolved inorganic carbon (DIC) or total CO2 (TCO2) analyzer. These instruments will allow precise determinations of DO (0.1 uM precision) in sediment pore waters or the water column of freshwater, astuarine and marine systems. Research projects benefiting from the acquisition of the metabolic gas analysis system focus on: controls on organic matter production and decomposition in marine and freshwater sediments; microbial food webs and trophic structure of lakes, rivers, estuaries and the continental shelf; benthic and pelagic carbon and nitrogen cycling in arctic lakes and rivers and land margin ecosystems; the source and fate of dissolved organic carbon and nitrogen in aquatic systems; and biogeochemical changes occurring in lakes due to increased sulfate deposition. The metabolic gas analysis system will be available to all investigators at the MBL and advertised through the widely distributed MBL brochures. A steam autoclave will also be acquired. The Marine Biological Laboratory will make these items available to visiting scientists as well as resident scientists. In a secondary manner, the items may also serve educational purposes.

摘要：9311133，PI伯里斯：该项目将协助海洋生物实验室在实验室和多用户设备，将有利于居民和来访的科学家和教育计划的收购。 一 代谢气体分析系统将获得两个组成部分，这将使常规，超高精度测量水样品中的二氧化碳和氧气。 该系统的两个组成部分是1）计算机控制的溶解氧（DO）滴定仪，和2）超高精度K1溶解无机碳（DIC）或总CO2（TCO 2）分析仪。 这些仪器将能够精确测定沉积物孔隙沃茨或淡水、河口和海洋系统的水柱中的溶解氧（0.1 μ M精度）。 从购置代谢气体分析系统中获益的研究项目侧重于：控制海洋和淡水沉积物中有机物质的产生和分解;湖泊、河流、河口和大陆架的微生物食物网和营养结构;北极湖泊和河流以及陆缘生态系统中的海底和水层碳和氮循环;水生系统中溶解有机碳和氮的来源和归宿;以及由于硫酸盐沉积增加而在湖泊中发生的生态地球化学变化。 代谢气体分析系统将提供给MBL的所有研究人员，并通过广泛分发的MBL手册进行宣传。 还将获得蒸汽高压灭菌器。 海洋生物实验室将向来访科学家和常驻科学家提供这些物品。 在次要的方式，这些项目也可以用于教育目的。