MRI: Acquisition of a Soot-Particle Aerosol Mass Spectrometer for the Measurement of Submicron Particulate Chemical Composition

该项目涉及购置一台Aerodyne烟尘颗粒气溶胶质谱仪，这是一种新开发的仪器，可用于真实的实时测量亚微米气溶胶的尺寸分辨化学成分。SP-AMS类似于Aerodyne高分辨率飞行时间气溶胶质谱仪，但增加了一个红外激光器和单粒子烟尘光度计，用于测量炭黑，这是前几代AMS无法实现的测量。在某些应用中也有微量元素测量的前景。该仪器将为德雷克塞尔大学研究大气化学、室内空气质量、燃烧和颗粒物对公共健康影响的科学家提供先进的分析工具。该仪器还将提供给中大西洋地区其他大学的团体，如罗格斯大学、特拉华州大学、哥伦比亚大学和巴克内尔大学，并促进与这些团体的合作研究互动，许多年轻科学家将受益于利用该仪器的培训和研究项目。这些学生的一个来源，公共卫生的德雷克塞尔学校，有一个补助金计划（R25从国家研究所少数民族健康和健康差异），以支持研究生研究人员从代表性不足的群体，这将立即鼓励研究人员使用SP-AMS的多样性。对更广泛的研究界的影响将涉及研究产品的传播（例如，数据集和软件工具）供其他研究人员使用。对整个社会的积极影响将源于对气溶胶化学如何影响气候变化、生活质量和健康的理解的改善。

This project involves acquisition of an Aerodyne soot particle aerosol mass spectrometer (SP-AMS), a newly-developed instrument that allows the measurement of size resolved chemical composition of sub-micrometer aerosols in real time. The SP-AMS is similar to the Aerodyne high-resolution time-of-flight aerosol mass spectrometer but adds an infrared laser and single particle soot photometer for the measurement of black carbon, a measurement that was not obtainable in earlier generations of the AMS. There is also the promise of trace element measurement in some applications. The instrument will provide a cutting-edge analytical tool for scientists at Drexel University who study atmospheric chemistry, indoor air quality, combustion, and public health impacts of particulates. The instrument will also be made available to and foster collaborative research interactions with groups from other universities in the Mid-Atlantic region such as Rutgers University, the University of Delaware, Columbia University, and Bucknell University.Many young scientists will benefit from training and research projects that utilize this instrument. One source of such students, the Drexel School of Public Health, has a grant program (R25 from the National Inst. on Minority Health and Health Disparities) for supporting graduate researchers from underrepresented groups, which will immediately encourage the diversity of researchers using the SP-AMS. Impacts to the broader research community will involve the dissemination of research products (e.g., datasets and software tools) for use by other researchers. Positive impacts on society at large will stem from improvements to the understanding of how aerosol chemistry affects climate change, quality of life, and health.