Acquisition of a High Resolution Mass Spectrometer for Materials Characterization and Education

购买高分辨率质谱仪用于材料表征和教育

• 批准号: 0114235
• 负责人: Joseph Hupp
• 金额: $ 23.54万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2002-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0114235&HistoricalAwards=false
• 关键词: Acquisition; Resolution; Mass; Spectrometer; Materials

This award from the Instrumentation for Materials Research Program and the Solid-State Chemistry Program will help Northwestern University with the acquisition of a high-resolution magnetic-sector mass spectrometer with electron impact (EI) and liquid secondary ion mass spectrometry (LSIMS) ionization sources. This instrument will be used to characterize a wide range of materials science compounds such as mesoporous supramolecular molecules, porphyrazines, novel molecular species for electronic device structure, and other macrocyclic materials. As this research has moved toward larger and more complex species, the availability of in-house state-of- the-art mass spectrometry instrumentation has become essential for characterization of these molecules. The requested instrument will improve on the mass spectrometry capabilities for in-house molecular characterization in several ways: (1) the increased sensitivity for high-resolution mass spectrometry with either electron impact (EI) or LSIMS ionization is essential for determination of elemental composition of these species; (2) the increased mass range for mass spectrometry with LSIMS ionization will allow both low- and high-resolution characterization of the higher molecular weight species which will continue to increase in molecular weight as the research programs at NU progress; (3) air-sensitive materials may be characterized without fear of decomposition during transit to another laboratory.This award from the Instrumentation for Materials Research Program and the Solid-State Chemistry Program will help Northwestern University (NU) with the acquisition of a high-resolution magnetic-sector mass spectrometer with electron impact and liquid secondary ion mass spectrometry ionization sources and with appropriate sample inlets for compounds with a wide range of volatility and purity. This instrument will be a significant benefit to molecular characterization in the materials research efforts in the Chemistry Department. Currently such characterization is done by sending samples to external laboratories. In-house characterization with the requested instrument will benefit both the research and the educational efforts at NU. The availability of the requested instrument for in-house analysis will increase significantly the exposure of graduate students to modern analytical techniques. In addition to gaining a more complete characterization of the materials that they have synthesized, students also will gain a deeper understanding of the techniques used for the analysis, the reason for choosing different ionization techniques, and the accurate interpretation of the mass spectra gathered from this analysis.

来自材料研究计划仪器和固态化学计划的这一奖项将帮助西北大学获得具有电子碰撞（EI）和液体二次离子质谱（LSIMS）电离源的高分辨率磁扇区质谱仪。该仪器将用于表征各种材料科学化合物，如介孔超分子分子、四氮杂卟啉、用于电子器件结构的新型分子物种和其他大环材料。由于这项研究已经转向更大和更复杂的物种，内部最先进的质谱仪器的可用性已成为这些分子的表征至关重要。所要求的仪器将在几个方面改进用于内部分子表征的质谱分析能力：（1）增加具有电子轰击（EI）或LSIMS电离的高分辨率质谱分析的灵敏度对于确定这些物质的元素组成是必不可少的;（2）使用LSIMS电离的质谱法的增加的质量范围将允许低和高-随着NU研究计划的进展，高分子量物质的分辨率表征将继续增加分子量;（3）空气敏感材料可以在运输到另一个实验室的过程中进行表征，而不必担心分解。国家化学计划将帮助西北大学（NU）收购高分辨率磁扇区质谱仪，该质谱仪具有电子碰撞和液体二次离子质谱电离源，并具有适当的样品入口，用于具有广泛挥发性和纯度的化合物。该仪器将对化学系材料研究工作中的分子表征具有重要意义。目前，这种表征是通过将样品送到外部实验室来完成的。使用所要求的仪器进行内部表征将有利于NU的研究和教育工作。所要求的内部分析仪器的提供将大大增加研究生接触现代分析技术的机会。除了获得他们合成的材料的更完整的表征，学生还将获得用于分析的技术，选择不同电离技术的原因，以及从该分析中收集的质谱的准确解释的更深入的了解。