Assembly of a Vacuum Chamber: A Hands-On Approach To Introduce Mass Spectrometry

作者：Bussiere Guillaume^*; Stoodley Robin; Yajima Kano; Bagai Abhimanyu; Popowich Aleksandra K; Matthews Nicholas E

来源：Journal of Chemical Education, 2014, 91(12): 2163-2166.

DOI：10.1021/ed500405m

• Upper-Division Undergraduate
• Interdisciplinary/Multidisciplinary
• Laboratory Instruction
• Hands-On Learning/Manipulatives
• Mass Spectrometry
• Qualitative Analysis

Although vacuum technology is essential to many aspects of modern physical and analytical chemistry, vacuum experiments are rarely the focus of undergraduate laboratories. We describe an experiment that introduces students to vacuum science and mass spectrometry. The students first assemble a vacuum system, including a mass spectrometer. While assembling the vacuum system students learn about the components and the conditions necessary to operate a mass spectrometer. Then students use their assembled system to explore mass spectrometry; they use the mass spectrometer to diagnose vacuum conditions, then collect the mass spectrum of an unknown organic molecule, and propose the identity of the molecule.

• 出版日期2014-12