Ion Chromatography: Water Analysis in the Undergraduate Chemistry Laboratory Curriculum

离子色谱：本科化学实验室课程中的水分析

基本信息

批准号：
9850906
负责人：
Kumar Sinniah
金额：
$ 2.26万
依托单位：
Calvin University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1998
资助国家：
美国
起止时间：
1998-09-01 至 2000-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9850906&HistoricalAwards=false
关键词：
Ion Chromatography Water Analysis Undergraduate

项目摘要

An ion chromatography system is being used to introduce experimental modules involving water quality measurements into the laboratory component of first-year General Chemistry, Fundamentals of Chemistry, Quantitative Analysis, and Environmental Chemistry. These applications are relevant to our undergraduate students since they involve direct measurements of how human activities affect the natural environment. First-year students are being introduced to a laboratory module whose theme is the analysis of natural surface water systems and they are using this module to develop analytical skills in the laboratory. Upper-class students are gaining knowledge of and experience with an important new analytical instrument which is widely used in industry, research, and government laboratories. Students also are being tested on their ability to apply basic chemical principles to complex systems, and their ability to process and interpret data. Use of the ion chromatography system, fully capable of analyzing cations and anions in a variety of water samples, is enhancing the student laboratory experience since it supersedes wet chemical methods which are both labor intensive and time consuming. The impact that these modules have on our laboratory curriculum is being assessed by comparing the students' motivation and learning in such experiments with the learning which results from more traditional experiments.

离子色谱系统被用来引入涉及水质测量的实验模块，以进入第一年一般化学，化学基础，定量分析和环境化学的实验室成分。这些应用与我们的本科生有关，因为它们涉及人类活动如何影响自然环境的直接测量。一年级的学生被介绍给一个实验室模块，其主题是对天然地表水系统的分析，他们正在使用此模块来发展实验室的分析技能。上层学生正在通过一种重要的新分析工具获得知识和经验，该工具广泛用于行业，研究和政府实验室。还在测试学生将基本化学原理应用于复杂系统的能力以及处理和解释数据的能力。在各种水样中，完全能够分析阳离子和阴离子的离子色谱系统的使用正在增强学生实验室的体验，因为它取代了湿法的湿化学方法，这些化学方法既均匀且耗时。这些模块对我们实验室课程的影响正在通过比较学生在此类实验中的动机和学习与从更传统的实验产生的学习进行评估。