Size-Resolved Source Apportionment of Aerosol Particles with a Confocal Micro X-Ray Fluorescence Spectrometer-Reference-Cited by-同舟云学术

Size-Resolved Source Apportionment of Aerosol Particles with a Confocal Micro X-Ray Fluorescence Spectrometer

Published:2011-12 Issue:12 Volume:65 Page:1398-1402
ISSN:0003-7028
Container-title:Applied Spectroscopy
language:en
Short-container-title:Appl Spectrosc

Author:

Sun Tianxi¹,Liu Zhiguo¹,Li Yude¹,Ma Yongzhong¹,Wang Guangfu¹,Zhu Guanghua¹,Xu Qing¹,Lin Xiaoyan¹,Luo Ping¹,Pan Qiuli¹,Liu Hui¹,Teng Yuepeng¹,Ding Xunliang¹

Affiliation:

1. The Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Beijing Normal University, Beijing, 100875, China (T.S., Z.L., Y.L., G.W., G.Z., X.L., P.L., Q.P., H.L., Y.T., X.D.); Department of physics, University at Albany, SUNY, Albany, New York 12222 (T.S.); College of Nuclear Science and Technology, Beijing Normal University, Beijing, 100875, China (T.S., Z.L., Y.L., G.W., G.Z., X.D.); The Key Laboratory of Evidence Science of Ministry of Education, China University of...

Abstract

A laboratory confocal micro X-ray fluorescence (micro-XRF) spectrometer based on a polycapillary focusing X-ray lens (PFXRL) in the excitation channel and a polycapillary parallel X-ray lens (PPXRL) in the detection channel was used to carry out the size-resolved source apportionment of aerosol particles. The PPXRL in the detection channel both increased the collection angle of the detector and improved the signal-to-noise ratio of the X-ray spectrum. When this confocal micro-XRF spectrometer was used to carry out the quantitative XRF analysis of single aerosol particles with smaller size than that of the overlapping foci of the PFXRL and the PPXRL, the sensitivity was corrected by using a Gaussian function. The size-resolved “fingerprint database” for the air pollution sources was established based on the quantitative XRF results for single aerosol particles. The size-resolved aerosol particles on hazy-foggy days in Beijing were apportioned.

Publisher

SAGE Publications

Subject

Spectroscopy,Instrumentation

Link

http://journals.sagepub.com/doi/pdf/10.1366/11-06354

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