Valid Analytical Measurements in Undergraduate Laboratories

本项目涉及三门本科分析化学课程(化学专业一学期的定量和仪器分析课程，非化学专业一学期的分析化学课程)的实验室部分的重大变化。这些变化是化学系更大范围课程改革的一部分。这些变化包括：(A)在大部分工作中采用以角色为基础的合作学习方法；(B)制定和实施与工业相关的以问题为基础的工作。这些修订的目标是纠正国家科学基金会和其他机构最近强调的BS化学家教育的各种缺陷。新的实验室内容更加强调光谱学和色谱学。介绍了微波消解萃取、离子层析、固相微萃取、自动库仑卡尔费雪滴定和傅立叶变换红外显微镜等新技术。购买具有电子捕获检测的毛细管色谱仪和商用集成流动注射装置分别在气相色谱和流动注射分析领域提供了升级。讲授仪器的一些一般原理，特别是分子吸收光谱学的方法，是基于一种综合的方法，该方法从建模开始，通过构建模块化的仪器来评估商业仪器。包括数据处理和处理的实验。工业咨询委员会在设计许多实验工作方面提供帮助，包括以问题为基础的实验。作为新教材的一部分，已经建立了一个网站，并将通过教育会议和期刊传播信息。

This project involves major changes in the laboratory component of three undergraduate analytical chemistry courses (the one-semester courses in quantitative and instrumental analysis for chemistry majors, and the one-semester course in analytical chemise for non-chemistry majors). These changes are part of larger curricular reform in the Chemistry Department. The changes include (a) the introduction of a role-based cooperative learning approach to much of the work and (b) the development and implementation of problem-based work of industrial relevance. The goal of these revisions is to redress the various short-comings in the education of BS chemists recently highlighted by the NSF and others. The new laboratory content gives more emphasis to spectroscopy and chromatography. The following new techniques are introduced: microwave assisted digestions and extractions, ion chromatography, solid phase microextraction, automatic coulometric Karl-Fisher titrimetry, and FT-IR microscopy. The acquisition of a capillary chromatograph with electron capture detection and a commercial integrated flow injection unit provides upgrades in the areas of gas chromatography and flow injection analysis, respectively. The approach to the teaching of some general principles of instruments, and of molecular absorption spectrometry in particular, is based on an integrated approach which starts with modeling and progresses though the construction of modular instruments to the evaluation of commercial instruments. Experiments on data handling and processing are included. An Industrial Advisory Board provides help in devising much of the experimental work, including the problem-based experiments. A web site has been established as part of the new teaching materials and information will be disseminated through educational conferences and journals.