Particle size measurement system of the aerosol time-of-flight mass spectrometer optimization study

Wen-wu Zhao; Xue-jun Gu; Li-qing Hao; Ming-qiang Huang; Hai-yang Zheng; Li Fang; Wei-jun Zhang

doi:10.1117/12.755311

28 November 2007 Particle size measurement system of the aerosol time-of-flight mass spectrometer optimization study

Wen-wu Zhao, Xue-jun Gu, Li-qing Hao, Ming-qiang Huang, Hai-yang Zheng, Li Fang, Wei-jun Zhang

Proceedings Volume 6834, Optical Design and Testing III; 683422 (2007) https://doi.org/10.1117/12.755311
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

In this paper, Aerosol time-of-flight mass spectrometer optical particle size measurement system optimization and influencing factors are studied. Optimized the distance between nozzle and the skimmer, using a shorter wavelength light source measurement, Aerosol particle size measurement from the previous limit of 260 nm to 120 nm. Study found that the particles scattered light intensity is connected with light intensity and wavelength of the light source. particle size measurements using shorter laser wavelengths or greater energy, which can measure smaller size diameter within certain range. combining particle beam focusing aerodynamic lens system device, the particle size of air the time-resolved measurement of 256 / min, Measurement of time-resolved mass spectrometry to 170 / min, MS hit rate of 64.5%.

Citation Download Citation

Wen-wu Zhao, Xue-jun Gu, Li-qing Hao, Ming-qiang Huang, Hai-yang Zheng, Li Fang, and Wei-jun Zhang "Particle size measurement system of the aerosol time-of-flight mass spectrometer optimization study", Proc. SPIE 6834, Optical Design and Testing III, 683422 (28 November 2007); https://doi.org/10.1117/12.755311

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