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Identification of origin of single aerosol particles using polycapillary X-ray lens |
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| Authors: | Tianxi Sun Zhiguo Liu Guanghua Zhu Hui Liu Qing Xu Guangpu Wang Hongbo Sun Ping Luo Qiuli Pan Xunliang Ding |
| Affiliation: | a The Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Beijing Normal University, Beijing 100875, China b Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875, China c Beijing Radiation Center, Beijing 100875, China d Institute of High Energy Physics, Chinese Academy of Science, Beijing 100039, China |
| Abstract: | A micro X-ray fluorescence (Micro-XRF) spectrometer based on a polycapillary focusing X-ray lens (PFXRL) and a laboratory X-ray source was designed to carry out the XRF analysis of single aerosol particles. The minimum detection limit (MDL) of this Micro-XRF spectrometer was 9 ppm for the Fe-Kα. The percentage of the particles of vehicle exhaust among aerosol particles was studied in Beijing, Chinese capital, during the test of odd-even driving restrictions for Beijing 2008 Olympics Games. This Micro-XRF spectrometer had potential applications in the analysis of single aerosol particles. |
| Keywords: | 78 70 En 41 50 th 91 67 gp |
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