Modern Infrared Spectrophotometry in the Undergraduate Laboratories

本项目通过对现代FT-IR分光光度计的频繁和不同的使用，为学生提供了经典和现代红外光谱技术的经验。该部门购买了Perking Elmer 1650 FT-IR，带有磁盘驱动器，绘图仪，漫反射和可变角度镜面反射附件以及Sadtler红外库。普通化学的学生在演示环境中遇到傅里叶变换红外光谱。该仪器在有机化学中得到了广泛的应用，并向学生介绍了仪器操作和光谱比较。一些实验需要FT-IR的能力，而不是传统的仪器。在高分子化学实验课程中，学生可以利用反射附件。在分析化学中的应用强调小样本量能力、漫反射和傅立叶变换理论。物理化学使用傅里叶变换红外光谱来获得解释HCl的旋转-振动光谱所需的一些光谱。生物化学用这种仪器作为分离和鉴定小生物分子的辅助工具。本科研究使用仪器时，它是可用的和适当的项目。这个项目使学生在红外光谱方面有了更多的经验，因为分析时间少得多，能力强得多。学生将获得现代红外光谱技术的经验，如漫反射和镜面反射，微观分析和基于计算机的库。傅里叶变换仪器的使用增强了对这个强大工具的理解。该机构为该项目提供的资金与美国国家科学基金会的资金相等。

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.