Instrumentation to Enhance Research-Based, Environmentally- Oriented Analysis Exercises in Undergraduate Science Courses

该项目采购一台计算机控制的离子色谱仪和自动进样器，用于分析常见的无机阴离子、有机酸和阳离子；一种氧化铝环磨容器，用于快速粉碎小而细粒度的岩石和土壤样品；以及粉末衍射数据库、CD-ROM计算机和x射线衍射（XRD）控制和数据库搜索软件，以增强现有的XRD仪器。新设备加强了对天然水、岩石、土壤和其他环境样品的样品制备和化学分析。这种增强是由地质系、土木工程系、化学系和生物系持续不断的努力推动的，这些努力将抽象的实验室练习替换为那些涵盖类似概念但涉及实际样品收集、准备和分析的实验练习。除了教授技能和概念外，其目的是让初级和高级学生更好地理解科学的本质以及分析研究和测量的目的。＊

This project is purchasing a computer-controlled ion chromatograph and autosampler for the analysis of common inorganic anions, organic acids, and cations; an aluminum oxide ring mill vessel for rapidly crushing small, fine-grained rock and soil samples; and a powder diffraction database, CD-ROM computer, and x-ray diffraction (XRD) control and database search software to enhance the current XRD instrument. The new equipment is enhancing sample preparation and chemical analyses of natural water, rocks, soils, and other environmental samples. This enhancement is driven by ongoing efforts, in the Department of Geology, Civil Engineering, Chemistry, and Biology, to replace abstract laboratory exercises with those that cover similar concepts but involve hands-on sample collection, preparation, and analysis. The object, in addition to teaching the skills and concepts, is to give introductory and advanced students a better understanding of the nature of science and the purpose of analytical research and measurement. *