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

化学（12）石墨炉原子吸收光谱仪（GF-AAS）被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，在普通化学的两个学期，以及四门高级化学课程：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中，都将使用GF-AAS进行新的或修订的实验室实验。此外，项目教师正在开发实验室实验，包括在跨学科生态学实验课程、全球环境课程和生物系的植物生理学实验课程中使用GF-AAS。化学和生物课程的实验室实验特别强调吸引学生的兴趣，其中一些实验为学习化学内容创造了工具，这些内容自然地以合乎道德的方式触及社会正义问题。已经确定并正在评估涉及GF-AAS使用的每个实验室实验的学习和处置结果。该项目有四个主要目标：1)在学生实验室提供化学分析的实际应用；2)在高层化学实验室中使用GF-AAS进行新颖有趣的实验；（三）在化学以外学科的教学中应用化学分析；4)使化学变得有趣和有趣，也就是说，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。评估是通过几门课程的概念量表分析学生在课程前和课程后对概念理解的测量结果。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情况，以评估在他们的许多课程中使用GF-AAS如何增强学生对涉及GF-AAS的技术的兴趣和理解。新的实验室实验正在通过化学教育和生物教育的同行评审出版物以及通过NSDL的交叉发布进行传播。科研成果正在通过科学教育领域的会议和同行评议期刊进行分享。这些实验也通过Perkin-Elmer提供给其他使用相同仪器或有兴趣将仪器的使用纳入其课程的机构使用。

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.