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

化学（12）一个石墨炉原子吸收光谱仪（GF-AAS）正在整合整个学院的化学课程，也在跨学科课程与生物系。具体而言，GF-AAS的使用正在纳入普通化学两个学期的新的或修订的实验室实验，以及四个高级化学课程：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。此外，项目教师正在开发实验室实验，涉及GF-AAS在跨学科生态学实验室课程，全球环境课程和生物系植物生理学实验室课程中的使用。化学和生物课程的实验室实验正在开发，特别强调捕捉学生的兴趣，其中一些实验正在创造学习化学内容的工具，这些内容自然会以道德上适当的方式触及社会正义问题。涉及GF-AAS使用的每个实验室实验的学习和处置结果已经确定，并正在进行评估。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）在高级化学实验室中使用GF-AAS进行新的有趣实验; 3）在化学以外的教学学科中使用化学分析;以及4）使化学变得有趣和有趣，即，容易接近这些目标与化学系计划中的学习目标相结合，以评估其提供严格课程的总体承诺，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清单来分析学生的概念理解的课程前和课程后的测量。该评估还纵向跟踪化学专业，因为他们通过本科化学课程的进展，以评估如何使用GF-AAS在他们的许多课程加强学生的兴趣和理解的技术涉及GF-AAS。新的实验室实验正在通过化学教育和生物教育方面的同行评审出版物以及通过NSDL上的交叉张贴进行传播。研究成果通过科学教育方面的会议和同行评审期刊进行分享。这些实验也通过Perkin-Elmer提供给使用相同仪器或有兴趣将仪器的使用纳入其课程的其他机构使用。

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.