Flow Injection Analyzer for in Situ Oceanic Chemical Analyses

用于原位海洋化学分析的流动注射分析仪

• 批准号: 9000112
• 负责人: Craig Taylor
• 金额: $ 22.86万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-08-01 至 1993-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9000112&HistoricalAwards=false
• 关键词: Flow; Injection; Analyzer; Situ; Oceanic

The Woods Hole Oceanographic Institution will continue an oceanographic instrumentation development project to develop, construct, and test a multi-channel, in situ flow injection chemical analysis system. The objective of the device is to make autonomous in-situ colorometric measurements of nitrate and phosphate to full ocean depths for periods of up to six months. Simultaneous measurement of additional inorganic nutrients is planned for he future. A shallow water prototype has been constructed, but is depth limited because it relies on an umbilical cable to provide power and to control the various pumps and motors. This new effort will develop the electronics and mechanisms to enable the analyzer to function autonomously in depths of down to 6,000 meters. Anti-fouling measures will be developed and reagent stability tests will be made to allow long-term unattended deployments. The analyzer is ideally suited for testing a new scientific hypothesis about primary productivity in oligotrophic waters being driven by sporadic and short-lived injections of nutrients. The analyzer is also intended to have numerous applications in time-series investigations relating to GOFS Global Geoscience initiative.

伍兹霍尔海洋研究所将继续 海洋仪器开发项目， 构建并测试多通道原位流动注射 化学分析系统 该装置的目的是 进行硝酸盐的自主原位比色测量 和磷酸盐到整个海洋深处的时间长达六个月 个月 同时测量额外的无机 营养素是为未来计划的。 浅水 原型已经建成，但深度有限，因为 它依靠脐带电缆提供电力并 控制各种泵和电机。 这项新的努力将发展电子和机制， 为了使分析仪能够在 下降到六千米 防污措施将 将进行开发和试剂稳定性试验， 长期无人值守部署。 分析仪理想地 适合于测试一个新的科学假设， 贫营养沃茨的生产力是由零星的 和短暂的营养注射。 所述分析器经 也打算在时间序列中有许多应用 与GOFS全球地球科学倡议有关的调查。