Atomic Absorption Spectroscopy in the Undergraduate Chemistry Curriculum

原子吸收光谱学在本科化学课程中的应用

• 批准号: 9650442
• 负责人: Curtis Keedy
• 金额: $ 2.24万
• 依托单位: Lewis and Clark College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-07-01 至 1998-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9650442&HistoricalAwards=false
• 关键词: Atomic; Absorption; Spectroscopy; Undergraduate; Chemistry

This project concerns the purchase of an atomic absorption spectrometer, which has the capability of both flame and graphite furnace atomization. This instrument can be used in a wide variety of introductory courses, both major and nonmajor, as well as in upper division courses and undergraduate research. Because atomic absorption is such a widely accepted method, students are learning how modern instruments are used in analytical and environmental laboratories in the 1990s, including computer interfacing and control. Specifically, experiments are planned for the Environmental Chemistry and Perspectives in Nutrition nonmajor courses; Equilibrium and Analysis and General Chemistry (Accelerated) Laboratory science major introductory courses; and the Inorganic/Physical Chemistry Lab, Instrumental Analysis, and student/faculty research projects in the upper-division courses. It is important that both introductory and advanced students get first-hand experience with this instrument in order to understand the advantages and limitations of the atomic absorption method. The graphite furnace enables detection of many elements in the parts per billion to trillion range, which is the level of occurrence of trace metals in many environmental and biological samples.

该项目涉及购买一台原子吸收光谱仪，该光谱仪具有火焰和石墨炉原子化的能力。该仪器可用于各种各样的入门课程，无论是专业和非专业，以及在上师课程和本科研究。由于原子吸收是一种被广泛接受的方法，学生们正在学习如何在20世纪90年代在分析和环境实验室中使用现代仪器，包括计算机接口和控制。 具体而言，实验计划为环境化学和营养学的观点非专业课程;平衡与分析和普通化学（加速）实验室科学专业入门课程;和无机/物理化学实验室，仪器分析，和学生/教师的研究项目在上师课程。 重要的是，入门级和高级学生都要获得使用该仪器的第一手经验，以了解原子吸收法的优点和局限性。石墨炉能够检测十亿分之一至万亿分之一范围内的许多元素，这是许多环境和生物样品中微量金属的存在水平。