Computer-Controlled Spectrometers in Undergraduate Chemistry

本科化学中的计算机控制光谱仪

• 批准号: 9550990
• 负责人: Harmon Abrahamson
• 金额: $ 3.53万
• 依托单位: University of North Dakota Main Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-09-01 至 1997-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9550990&HistoricalAwards=false
• 关键词: Computer; Controlled; Spectrometers; Undergraduate; Chemistry

This addresses curricular needs by designing experiments to use computer-controlled spectrophotometric instrumentation in the undergraduate laboratory at all levels, for both majors and nonmajors. This enables students to receive the desired exposure to these methods through hands-on use. Two different types of spectrometer are being used. Fourier transform infrared (FT-IR) instruments are being used heavily in organic chemistry and to a lesser extent in analytical chemistry courses. The second type is a modernized emission spectrophotometer based on an existing spectrophotofluorimeter. This is being used for emission measurements in the ultraviolet and visible regions of the spectrum. This spectrometer also serves as a detector in a Raman spectroscopy experiment. The fluorescence spectrometer is being used mostly in general, physical, and analytical chemistry laboratories. Both types of spectrometer allow ready spectral subtraction and database searching and bring the advantages of signal averaging and easy manipulation of spectra. The fluorescence data system also allows the determination of kinetic parameters from time-varying data Both types of instrument are being integrated into the laboratory courses serving chemistry and chemical engineering majors at all levels from general chemistry to senior research.

这解决了课程的需要，通过设计实验，使用计算机控制的分光光度计仪器在本科实验室在各级，为专业和非专业。 这使学生能够通过动手使用获得所需的接触这些方法。 正在使用两种不同类型的光谱仪。 傅里叶变换红外（FT-IR）仪器在有机化学中大量使用，在分析化学课程中使用较少。 第二类是基于现有荧光分光光度计的现代化发射分光光度计。 这被用于光谱的紫外线和可见光区域的发射测量。 该光谱仪还可用作拉曼光谱实验中的检测器。 荧光光谱仪主要用于一般，物理和分析化学实验室。 这两种类型的光谱仪都可以进行光谱减法和数据库搜索，并具有信号平均和光谱易于操作的优点。 荧光数据系统还允许从时变数据中确定动力学参数这两种类型的仪器正在整合到服务于从普通化学到高级研究的各级化学和化学工程专业的实验室课程中。