Instructional Use of a Polarized Zeeman Atomic Absorption Spectrophotometer in Chemistry

原子吸收光谱分析在现代分析化学中具有重要意义。它提供了许多有用的光谱学原理的说明，并为研究许多环境问题的学生提供了痕量金属分析的方法。购买了配备火焰、石墨炉和偏振塞曼背景校正功能的日立Z-8100原子吸收光谱仪。该仪器在我们的化学课程中用于所有级别，包括(A)在普通化学中用于钴分析；(B)在大二分析化学中用于食品中金属营养素的测定和课程中的各种个人学生项目；(C)环境化学，用于测量铅和其他有毒金属以及水、土壤和污水污泥；。(D)仪器分析课程：和(E)水分析技术。极化塞曼背景校正功能极大地提高了复杂矩阵中样本测量的可靠性。该机构正在将NSF的拨款与同等数额的资金相匹配。

Atomic absorption spectrometry is of fundamental importance in modern analytical chemistry. It provides many useful illustrations of spectroscopic principles, and makes methods for trace metal analysis available to students investigating a number of environmental problems. A Hitachi Z-8100 atomic absorption spectrometer equipped with flame, graphite furnace, and polarized Zeeman background correction capabilities was purchases. This instrument is used at all levels in our chemistry program including (a) in general chemistry for cobalt analysis; (b) in sophomore analytical chemistry for the determination of metal nutrients in foods and for a variety of individual student projects within the course; (c) in Environmental chemistry for measurement of lead and other toxic metal and water, soil, and sewage sludge; (d) in the Instrumental Analysis course: and (e) in Techniques of Water Analysis. The polarized Zeeman background correction feature greatly improves the reliability of measurements on samples in complex matrices. The institution is matching the NSF grant with an equal amount of funds.