Acquisition of an Automated Atomic Absorption Spectrometer System for Enhancement of Undergraduate Education in Environmental Geology and Geochemistry

9452375罗斯购买了一套现代化的计算机自动原子吸收光谱分析系统。该项目旨在提高准备进入环境地质学和地球化学领域的本科生的教育和研究能力，方法是布置复杂的水分析“动手”作业。该项目强调一种综合方法，包括项目构思、采样战略规划、采样、水分析、数据缩减和介绍、撰写报告以及关于使用和滥用科学数据的伦理考量。这项拟议的项目是对1993年春季成功完成的原型项目的升级，该原型项目涉及校园饮水机中铅的测定。环境地质学的一小部分学生根据EPA的作用水平20 ppb铅来评估饮用水中的铅浓度。学生们使用的是一台老式的、手动的、相对不准确的石墨炉原子吸收光谱仪。拟议的新自动化仪器使所有环境地质学学生能够以优异的成绩完成这项任务和类似的任务，从而培养出一批受过更好教育、准备更充分的科学家，走向环境地质学和地球化学的专业生涯。

9452375 Rose A modern, computer automated system for atomic absorption spectrometry has been purchased. The project is to enhance the education and research capabilities of undergraduate students who are preparing to enter the fields of environmental geology and geochemistry by giving sophisticated "hands-on" assignments in water analyses. The project emphasizes an integrated approach that includes project conception, planning of the sampling strategy, carrying out the sampling, carrying out the water analyses, data reduction and presentation, report writing, and ethical considerations regarding the use and abuse of scientific data. The proposed project represents an upgrading of a prototype project completed successfully in Spring, 1993, which involved determinations of Pb in campus drinking fountains. A small subset of students in Environmental Geology assessed the Pb concentrations of drinking water in light of the EPA action level of 2O ppb Pb. The students used an old, manual, and relatively inaccurate graphite furnace atomic absorption spectrometer. The proposed new automated instrument enables this and similar assignments to be carried out with superior results by all of the Environmental Geology students, resulting in a better educated and better prepared graduating class of scientists headed for professional careers in environmental geology and geochemistry.