Instrumentation for Trace Metal Determination in Collaborative Geology, Chemistry and Environmental Studies Projects

地质学、化学和环境研究合作项目中痕量金属测定仪器

• 批准号: 9750423
• 负责人: James Larrabee
• 金额: $ 3.51万
• 依托单位: Middlebury College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-07-01 至 1999-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9750423&HistoricalAwards=false
• 关键词: Instrumentation; Trace; Metal; Determination; Collaborative

A cold vapor atomic absorption spectrometer for trace level ( 10 ppb) mercury determinations and a graphite furnace atomic absorption spectrometer for determination of other heavy metals ( sub ppb) are providing information on the concentrations of metals in water, waste water, and sediments to collaborative geoscience, chemistry, and environmental science projects. The instrumentation is used in the Departments of geology, Chemistry/Biochemistry, and in the Environmental Studies program to enhance the laboratory curricula. This instrumentation facilities collaboration between the college and outside organizations. The identifying theme of the project is the determination of trace metals in the waters and sediments of Lake Champlain. The location of the college near the lake, makes it a natural laboratory for course work and undergraduate research. Access to this unique opportunity is enhanced by a 32 foot research vessel owned by the college. Samples include sewage sludge, lake sediments, lake and river water, zebra mussels, and game fish. These samples are providing information necessary to determine the origin, transport, and ultimate fate of metals in this ecosystem. *

用于痕量汞（10 ppb）测定的冷蒸气原子吸收光谱仪和用于测定其他重金属（低于ppb）的石墨炉原子吸收光谱仪正在为地球科学、化学和环境科学合作项目提供有关水、废水和沉积物中金属浓度的信息。该仪器用于地质，化学/生物化学部门，并在环境研究计划，以加强实验室课程。 这仪器设施之间的合作学院和外部组织。 该项目的确定主题是确定尚普兰湖沃茨和沉积物中的痕量金属。 学院靠近湖泊的位置，使其成为课程工作和本科研究的天然实验室。 获得这一独特的机会是由学院拥有的32英尺的研究船增强。 样品包括污水污泥、湖泊沉积物、湖泊和河水、斑马贻贝和猎鱼。 这些样本提供了必要的信息，以确定该生态系统中金属的起源，运输和最终命运。 *