Atomic Absorption in the Undergraduate Laboratories

本科生实验室中的原子吸收

• 批准号: 0088015
• 负责人: Michelle Bushey
• 金额: $ 1.7万
• 依托单位: Trinity University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-01-01 至 2003-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0088015&HistoricalAwards=false
• 关键词: Atomic; Absorption; Undergraduate; Laboratories

Chemistry (12) Geology (42)Atomic absorption (AA) spectroscopy is typically an integral part of undergraduate chemistry education. The processes involved with AA are easily understood by students. An AA spectrometer is being used as a vehicle to introduce sophisticated analytical ideas and interesting challenges into several different chemistry courses. An introductory geosciences course is utilizing the instrument in the study of the geochemistry of natural waters. Finally, the AA is serving as an interdisciplinary bridge between the Departments of Chemistry and Geosciences. Analytical procedures from the educational and research literature are being adapted in order to achieve these objectives. This project simultaneously addresses two main objectives. First, chemistry students have exposure to the AA instrumentation in the first semester, junior level analytical, and senior level instrumental analysis laboratories. Each exposure builds on the previous experience in a way otherwise not possible if students were to encounter AA only once. More sophistication and subtleties are then layered into the advanced labs. Improvements in instruction occur in a manner consistent with the philosophies that 'real samples' should be used when possible, interdisciplinary applications and opportunities should be exploited, effective communication of results is critical, and students should have input into experimental design.Secondly, this instrumentation is serving as a bridge between the Departments of Chemistry and Geosciences. Including geosciences in the implementation of this project realizes several key advantages. The Geosciences curriculum is being enhanced through the addition of sophisticated instrumentation, typically encountered only in chemistry. For those students electing to major in geosciences, it emphasizes the interdisciplinary nature of the geosciences early in their career. By creating a link between chemistry and geosciences courses, both sets of students must exchange knowledge about their respective disciplines in order to better understand the laboratory assignments. Geosciences classes are typically more attractive to non-science, mathematics, engineering, technology (SMET), and education majors than are other SMET classes. Thus, the interdisciplinary link means that the Department of Chemistry is able to reach these students in a small but novel way.

化学（12）地质学（42）原子吸收（AA）光谱通常是本科化学教育的一个组成部分。学生很容易理解AA的过程。一个AA光谱仪被用来作为一种工具，介绍复杂的分析思想和有趣的挑战到几个不同的化学课程。地球科学入门课程是利用该仪器研究天然沃茨的地球化学。最后，AA是作为化学和地球科学部门之间的跨学科桥梁。为了实现这些目标，正在对教育和研究文献中的分析程序进行调整。该项目同时涉及两个主要目标。首先，化学专业的学生在第一学期接触到AA仪器，初级分析和高级仪器分析实验室。每一次接触都建立在以前的经验之上，如果学生只遇到一次AA，那么就不可能。更多的复杂性和微妙性，然后分层到先进的实验室。教学的改进发生在一个符合的哲学，即“真实的样品”应尽可能使用，跨学科的应用和机会，应利用，结果的有效沟通是至关重要的，学生应该有输入到实验设计。将地球科学纳入该项目的实施中实现了几个关键优势。地球科学课程正在通过增加通常只在化学中遇到的复杂仪器来加强。对于那些选择主修地球科学的学生来说，它强调了地球科学在职业生涯早期的跨学科性质。通过在化学和地球科学课程之间建立联系，两组学生必须交流各自学科的知识，以便更好地理解实验室作业。地球科学课程通常比其他SMET课程更吸引非科学，数学，工程，技术（SMET）和教育专业的学生。因此，跨学科的联系意味着化学系能够以一种小而新颖的方式接触这些学生。