GC/FT/IR/Raman in Undergraduate Teaching Laboratories

本项目为本科教学实验室采购气相色谱仪、傅里叶变换、红外拉曼光谱仪一台。该仪器有一个现代化的数据系统，该系统与计算机网络相连，使大量学生能够接触到实用的现代分离和振动光谱。接触和“动手”使用乐器的程度从大一开始，增加到高年级。系里对新生在化学荣誉课上进行初步接触的可能性感到非常兴奋，因为一项关于温室气体的光谱实验正在被提议。在有机实验室里，学生们分离混合物并识别他们合成的化合物。学生在物理化学实验室进行需要拉曼能力的氢键实验，以及涉及红外和拉曼选择规则的实验。无机化学专业的学生可以常规地使用该仪器来研究他们合成的一些有机金属配合物的红外和拉曼光谱。在分析实验室中，学生提取模拟尿液样本并进行GC/IR药物筛选。现有的大学红外光谱仪无法处理大量的学生或更复杂的实验，即使是在二年级的水平。然而，精心选择实验，有效利用仪器时间，以及通过网络轻松访问数据，使该系能够让许多学生接触实际的，“动手”的分离和振动光谱学。

This project involves the purchase of a gas chromatographic, Fourier-transform, infrared Raman spectrometer for use in the undergraduate teaching laboratories. The instrument has a modern data system which is being connected to the computer network, allowing exposure of large numbers of students to practical modern separations and vibrational spectroscopy. The degree of exposure and `hands-on` use of the instrument begins at the freshman level and increases to the senior level. The department is very excited about the possibility of initial student contact in the freshman chemistry honors section, for which a spectroscopic experiment on greenhouse gases is being proposed. In the organic laboratory, students separate mixtures and identify compounds that they have synthesized. Students in the physical chemistry laboratory carry out experiments on hydrogen bonding that require Raman capabilities and experiments involving IR and Raman selection rules. The inorganic chemistry students can routinely use the instrument to study the IR and Raman spectra of a number of organometallic complexes that they have synthesized. In the analytical laboratories, students extract a simulated urine sample and carry out a GC/IR drug screen. Existing university IR spectrometers cannot handle the large numbers of students or the more sophisticated experiments proposed even at the sophomore level. However, careful choice of experiments, efficient use of instrument time, and easy data access through the network enables the department to expose many students to practical, `hands-on` separations and vibrational spectroscopy.