（1） 气溶胶飞行时间质谱（ATOFMS）

气溶胶飞行时间质谱（aerosol time-of-flight mass spectrometer，ATOFMS）结合了空气动力学粒径测量技术和飞行时间质谱技术，可对环境空气中单个气溶胶颗粒的化学组分和粒径进行实时在线测量。 ATOFMS具有实时化学组分分析能量，可以消除传统的滤膜或碰撞器气溶胶采样方法的固有问题，在大气气溶胶环境监测及相关研究领域具有重要的实用价值，对大气气溶胶污染检测和来源解析都具有重要的意义。

ATOFMS由飞行时间质谱仪、气溶胶单粒子进样系统、气溶胶粒子粒径测量系统、紫外激光器、信号探测与数据采集系统等组成。

ATOFMS主要指标：                                                                   ATOFMS应用领域：

采样流量：0.14 L/min；                                                            大气粒子表征，排放源识别；

粒径测量范围：100-3000 nm；                                                 室内空气质量监测；

质谱分辨率：300；                                                                     化学和生物气溶胶检测；

质量范围：1~1000 Da；                                                            发动机排放测量；

粒子类型：空气中的固体颗粒和非挥发液滴。                               粉末生产质量以及过程控制等。

ATOFMS探测环境空气中颗粒物质谱实例：

（2） 质谱技术研究

在利用现有飞行时间质谱仪和光电子光离子符合质谱仪的基础上，结合电子枪、激光、真空紫外放电灯和同步辐射（与法国Synchrotron SOLEIL国家实验室、中国科学技术大学国家同步辐射实验室合作）等电离源，发展新的质谱检测技术，进一步探索大气自由基、痕量气体及气溶胶的测量新方法，并开展其化学反应动力学研究。

已发表论文

1. Synchrotron threshold photoelectron photoion coincidence spectroscopy of radicals produced in a pyrolysis source: The methyl radical

Y. Zhu, X. Wu, X. Tang*, Z. Wen, F. Liu, X. Zhou, W. Zhang*

Chemical Physical Letters, 664, 237-241 (2016).

2. Double imaging photoelectron photoion coincidence sheds new light on the dissociation of energy-selected CH3Cl+ ions

X. Tang*, X. Lin, W. Zhang, G. A. Garcia, L. Nahon

Physical Chemistry Chemical Physics, 18, 23923-23931 (2016).

3. Vacuum upgrade and enhanced performances of the double imaging electron/ion coincidence end-station at the vacuum ultraviolet beam line DESIRS

X. Tang, G. A. Garcia, J-F. Gil, L.Nahon

Review of Scientific Instruments, 86, 123108 (2015).

4. Experimental study of particulate products for aging of 1,3,5-trimethylbenzene secondary organic aerosol

Mingqiang Huang, Yuehong Lin, Xianying Huang, Xingqiang Liu, Xiaoyong Guo, Changjin Hu, Weixiong Zhao, Xuejun Gu, Li Fang, Weijun Zhang*

Atmospheric Pollution Research, 27 (6), 1-9 (2015).

5. Chemical composition of gas and particle–phase products of OH–initiated oxidation of 1,3,5–trimethylbenzene

Ming-Qiang Huang, Chang-Jin Hu, Xiao-Yong Guo, Xue-Jun Gu, Wei-Xiong Zhao, Zhen-Ya Wang, Li Fang, Wei-Jun Zhang*

Atmospheric Pollution Research, 5(1), 73-78(2014).

6. Chemical analysis of aged benzene secondary organic aerosol using aerosol laser time-of-flight mass spectrometer

Mingqiang Huang, Yuehong Lin, Xianying Huang, Xingqiang Liu, Changjin Hu, Xuejun Gu, Weixiong Zhao, Li Fang, Weijun Zhang*

Journal of Atmospheric Chemistry, 71, 213-224 (2014).

7. Aerosol laser time- of-flight mass spectrometer for the on-line measurement of secondary organic aerosol in smog chamber

Mingqiang Huang, Xingqiang Liu, Changjin Hu, Xiaoyong Guo, Xuejun Gu, Weixiong Zhao, Zhenya Wang, Li Fang, Weijun Zhang*

Measurement, 55:394-401, (2014).

8. Effects of inorganic seed aerosols on the growth and chemical composition of secondary organic aerosol formed from OH-initiated oxidation of toluene

Ming-Qiang Huang, Li-Qing Hao, Xue-Jun Gu, Chang-Jin Hu, Wei-Xiong Zhao, Zhen-Ya Wang, Li Fang, and Wei-Jun Zhang*

J. Atmos. Chem. 70, 151-164(2013).

9. Characterization of secondary organic aerosol particles using aerosol laser time-of-flight mass spectrometer coupled with FCM clustering algorithm

Mingqiang Huang*, Liqing Hao, Xiaoyong Guo, Changjin Hu, Xuejun Gu, Weixiong Zhao, Zhenya Wang, Li Fang, Weijun Zhang*

Atmospheric Environment 64: 85-94 (2013).

10. Size distribution and chemical composition of secondary organic aerosol formed from Cl-initiated oxidation of toluene

Huang Mingqiang, Zhang Weijun*, Gu Xuejun, Hu Changjin, Zhao Weixiong, Wang Zhenya, Fang Li

Journal of Environmental Sciences-China 24(5):860-864 (2012).

11. Mass Spectrometry Study of OH-initiated Photooxidation of Toluene

Mingqiang Huang, Weijun Zhang*, Zhenya Wang, Li Fang, Ruihong Kong, Xiaobin Shan, Fuyi Liu, Liusi Sheng

Chinese Journal of Chemical Physics 24(6): 672-678 (2011).

12. Influence Factors on Particle Growth for On-line Aerosol Matrix-assisted Laser Desorption/Ionization Time-of-flight Mass Spectrometry

Wei-wei Xia, Ru-fang Ti, Zi-liang Zhang, Hai-yang Zheng, Li Fang

Chinese Journal of Chemical Physics 23(3): 269-273, (2010).

13. 气溶胶单粒子化学成分在线聚类分析

夏玮玮，顾学军，郑海洋，方黎

分析化学 38(6): 795-799, (2010).

14. 源后脉冲聚焦技术应用于气溶胶激光飞行时间质谱仪

夏玮玮，顾学军，郑海洋，方黎

大气与环境光学学报 3(6): 437-443，2008.

15. 用激光解吸附电离飞行时间质谱法检测悬浮土壤颗粒物

郭晓勇，赵文武，林莺，顾学军，郑海洋，方黎，张为俊

光谱学与光谱分析 28(8): 1919-1922, 2008.

16. 基于模糊聚类算法的大气粒子激光电离质谱数据分析

郭晓勇，方黎，赵文武，顾学军，郑海洋，张为俊

光谱学与光谱分析 28(8): 1713-1717, (2008).

17. 用在线添加基质法检测气溶胶粒子

周留柱，朱元，郭晓勇，赵文武，郑海洋，顾学军，方黎，张为俊

中国科学G辑 36(2): 181~188, (2006).

18. 气溶胶单粒子化学成分的实时测量

夏柱红，方黎，郑海洋，孔祥和，顾学军，朱元，周留柱，张为俊

分析化学 32(7): 973-976, (2004).

19. 气溶胶单粒子粒径的实时测量方法研究

夏柱红，方黎，郑海洋，胡睿，张玉莹，孔祥和，顾学军，朱元，张为俊，鲍健，熊鲁源

物理学报 53(1): 320-324, (2004).

20. Initial development of single particle laser mass spectrometer

L. Fang*, Y. Zhu, H. Y. Zheng, X. Y. Guo, W. W. Zhao, L. Z. Zhou, W. J. Zhang

Optical Technologies for Atmospheric, Ocean, and Environmental Studies. SPIE proceedings series Vol.5832, p628. (August 03,2005).