The Incorporation of Graphite-Furnace Atomic Absorption Spectroscopy Across the Chemistry Curriculum

将石墨炉原子吸收光谱法纳入化学课程

• 批准号: 0942005
• 负责人: Elizabeth Dahl
• 金额: $ 12.06万
• 依托单位: Loyola University Maryland, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-05-15 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0942005&HistoricalAwards=false
• 关键词: Incorporation; Graphite; Furnace; Atomic; Absorption

Chemistry (12)A graphite furnace atomic absorption spectrometer (GF-AAS) is being integrated across the college's chemistry curriculum and also in cross-disciplinary courses with the biology department. Specifically, usage of the GF-AAS is being incorporated into new or revised lab experiments in both semesters of general chemistry, and four upper-level chemistry courses: quantitative analysis, the second semester of physical chemistry, the first semester of biochemistry, and instrumental methods. In addition, project faculty are developing laboratory experiments involving GF-AAS usage in a cross-disciplinary ecology lab course, a course on the global environment, and the plant physiology lab course in the biology department. The lab experiments for chemistry and biology courses are being developed with special emphasis on capturing students' interest, and several of these experiments are creating vehicles for learning chemistry content that naturally touch on social justice issues in ethically appropriate ways. Learning and disposition outcomes for each of the laboratory experiments involving GF-AAS usage have been identified and are being assessed. The project has four main goals: 1) to offer real-world application of chemical analysis in student laboratories; 2) to use GF-AAS in new and interesting experiments in upper level chemistry laboratories; 3) to use chemical analysis in teaching disciplines other than chemistry; and 4) to make chemistry fun and interesting, i.e., accessible. These goals are integrated with the learning aims in the chemistry department's plan for assessing its overall commitment to offer a rigorous program that prepares students for future careers in science. The evaluation is analyzing pre- and post-course measurements of students' conceptual understanding through concept inventories in several courses. The evaluation is also longitudinally tracking chemistry majors as they progress through the undergraduate chemistry curriculum, to assess how usage of GF-AAS in many of their courses intensifies student interest in and understanding of techniques involving GF-AAS. The new laboratory experiments are being disseminated through peer-reviewed publications in chemical education and biology education and through cross-postings on NSDL. Research results are being shared through conferences and peer-reviewed journals in science education. The experiments are also being made available through Perkin-Elmer for use by other institutions that use the same instrument or are interested in incorporating usage of the instrument into their curricula.

化学 (12) 石墨炉原子吸收光谱仪 (GF-AAS) 正在整合到学院的化学课程以及与生物系的跨学科课程中。具体来说，GF-AAS 的使用正在被纳入普通化学两个学期和四个高级化学课程的新的或修订的实验室实验中：定量分析、物理化学第二学期、生物化学第一学期和仪器方法。此外，项目教师正在开发涉及 GF-AAS 在跨学科生态学实验课程、全球环境课程以及生物系植物生理学实验课程中使用的实验室实验。化学和生物课程的实验室实验正在开发中，特别注重吸引学生的兴趣，其中一些实验正在创造学习化学内容的工具，这些内容自然会以符合道德的方式涉及社会正义问题。涉及 GF-AAS 使用的每个实验室实验的学习和处置结果均已确定并正在评估。该项目有四个主要目标：1）在学生实验室中提供化学分析的实际应用； 2) 在高级化学实验室中使用GF-AAS进行新的、有趣的实验； 3）在化学以外的学科教学中使用化学分析； 4）使化学变得有趣、有趣，即易于理解。这些目标与化学系计划中的学习目标相结合，以评估其总体承诺，提供严格的课程，为学生未来的科学职业做好准备。评估通过几门课程的概念清单来分析学生概念理解的课前和课后测量。该评估还纵向跟踪化学专业学生在本科化学课程中的进展，以评估在许多课程中使用 GF-AAS 如何增强学生对 GF-AAS 技术的兴趣和理解。新的实验室实验正在通过化学教育和生物教育领域的同行评审出版物以及 NSDL 上的交叉发布进行传播。研究成果正在通过科学教育领域的会议和同行评审期刊进行分享。 Perkin-Elmer 还提供这些实验，供使用相同仪器或有兴趣将该仪器的使用纳入其课程的其他机构使用。