Modern Infrared Spectrophotometry in the Undergraduate Laboratories

该项目为学生提供了古典和 现代红外光谱技术，通过频繁和 不同的现代FT-IR分光光度计的使用。 部 购买了Perking Elmer 1650 FT-IR和磁盘驱动器， 漫反射和可变角镜面反射 配件和Sadtler IR库。 普通化学专业学生 在演示环境中遇到FT-IR。 仪器 在有机化学中经常使用， 介绍仪器操作和光谱比较。 几 实验需要FT-IR的能力，而不是 传统的，工具。 学生在高分子化学实验室 当然要利用反光配件。 用于 分析化学强调小样本容量，扩散 反射率和傅立叶变换理论。 物理化学用途 FT-IR以获得一些需要解释的光谱 HCl的旋转振动光谱。 生物化学使用 仪器作为分离和鉴定小型 生物分子 本科研究使用该仪器时， 它是可用的并且适合于该项目。 该项目使 学生对红外光谱学的经验 因为分析时间要少得多， 更大 学生获得现代红外光谱学的经验 技术，如漫反射和镜面反射，微观分析 基于计算机的图书馆 傅里叶变换的使用 这一工具有助于人们对这一强大工具的理解。 该机构为该项目提供了相当于 NSF基金。

This project has provided students with experience in classical and modern techniques of infrared spectroscopy through frequent and varied use of a modern FT-IR spectrophotometer. The department purchased a Perking Elmer 1650 FT-IR with a disk drive, plotter, diffuse reflectance and variable angle specular reflectance accessories and a Sadtler IR library. Students in general chemistry encounter the FT-IR in a demonstration setting. The instrument receives frequent use in organic chemistry where the students are introduced to instrument operation and spectral comparison. Several experiments require the capabilities of the FT-IR, rather than a conventional, instrument. Students in a polymer chemistry laboratory course take advantage of the reflectance accessories. Use in analytical chemistry emphasizes small sample size capability, diffuse reflectance and Fourier Transform theory. Physical chemistry uses the FT-IR to obtain some of the spectra needed to interpret rotational-vibrational spectra of HCl. Biochemistry uses the instrument as an aid in isolation and identification of small biomolecules. Undergraduate research utilizes the instrument when it is available and appropriate to the project. This project allows students significantly more experience with infrared spectroscopy because analysis time is much less and the capabilities are much greater. Students gain experience in modern infrared spectroscopy techniques such as diffuse and specular reflectance, micro analysis and computer based libraries. The use of a Fourier transform instrument enhances understanding of this powerful tool. The institution contributed to the project in an amount equal to the NSF funds.