A5001265510- Atmospheric chemistry and aerosols
- Catalytic Processes in Materials Science
- Atmospheric Ozone and Climate
- Advanced Chemical Physics Studies
- Mass Spectrometry Techniques and Applications
- Indoor Air Quality and Microbial Exposure
- Advanced Chemical Sensor Technologies
- Air Quality and Health Impacts
- Spectroscopy and Laser Applications
- Photochemistry and Electron Transfer Studies
- Ion-surface interactions and analysis
- Catalysis and Oxidation Reactions
- Free Radicals and Antioxidants
- Vehicle emissions and performance
- Smoking Behavior and Cessation
- Electron and X-Ray Spectroscopy Techniques
- Analytical Chemistry and Chromatography
- Nuclear Physics and Applications
- Water Quality Monitoring and Analysis
- nanoparticles nucleation surface interactions
- Analytical chemistry methods development
Anhui Institute of Optics and Fine Mechanics
2016-2024
Chinese Academy of Sciences
2016-2024
Hefei Institutes of Physical Science
2023-2024
University of Science and Technology of China
2016-2020
Hefei University
2017
To characterize fast and dynamic thermophysical processes of aerosol formation from heated tobacco products (HTPs), a real-time chemical detection quantification at sub-second time resolution is great significance. Herein novel vacuum ultraviolet (VUV) photoionization time-of-flight mass spectrometer (PI-TOFMS) was adapted for on-line analysis gaseous particulate fractions formed two HTP systems contrasting designs. The used battery-powered heating mechanism to heat rods containing...
Organic peroxy radicals (RO2) as key intermediates in tropospheric chemistry exert a controlling influence on the cycling of atmospheric reactive and production secondary pollutants, such ozone organic aerosols (SOA). Herein, we present comprehensive study self-reaction ethyl (C2H5O2) by using advanced vacuum ultraviolet (VUV) photoionization mass spectrometry combination with theoretical calculations. A VUV discharge lamp Hefei synchrotron radiation at Swiss Light Source (SLS) are employed...
Abstract Photoionization mass spectrometry as a powerful analytical method has been widely utilized and provided valuable insight in the field of gas‐phase reactions. Here, highly sensitive vacuum ultraviolet (VUV) photoionization time‐of‐flight spectrometer combined with microwave discharge generator fast flow tube reactor developed to study radical reactions atmospheric combustion interests. Two kinds continuous light sources, tunable VUV synchrotron radiation at Hefei, China for...
A home-made vacuum ultraviolet photoionization time-of-flight mass spectrometer has been developed and coupled to an atmospheric simulation chamber operated at pressure a fast flow tube low (1-10 Torr). Gas sampling from the is realized directly via capillary effusive beam, continuous molecular beam inlet. Both devices are connected simultaneously ionization of can be switched in-between within minutes study gas-phase radical reactions interest in large range reaction conditions times (from...
C 2 H 5 O plus its gauche and trans conformers are studied using synchrotron-based VUV photoionization mass spectrometry theoretical calculations, it is found that the conformer has favorable Franck–Condon factors in photoionization.
Synchrotron TPEPICO and a flash pyrolysis micro-reactor were utilized to investigate thermal decomposition of <italic>n</italic>-butane its reaction mechanisms revealed.
The growing popularity of e-cigarettes and the associated risks nicotine addiction present a new challenge to global public health security. Measuring levels in e-cigarette aerosols is essential assess safety e-cigarettes. In this study, rapid situ method was developed for online quantification by using homemade vacuum ultraviolet photoionization aerosol mass spectrometer (VUV-AMS). E-cigarette liquids with different concentrations were prepared generate containing nicotine, which employed...
This paper presents the data of chemical composition particles from OH oxidation reaction 1,3,5-trimethylbenzene (1,3,5-TMB). The particle-phase compositions are measured on-line by using a vacuum ultraviolet (VUV) photoionization aerosol mass spectrometer. assignments major peaks spectrum, as well their molecular structures, presented. optimized structures reactants, intermediates and transition states involved in bicyclic peroxy radical with HO2 shown. routes OH-initiated deuterated...
The Cl-initiated oxidation of methacrolein (MACR, C4H6O) under NOx-free conditions has been investigated in a fast flow tube by using home-made vacuum ultraviolet (VUV) photoionization mass spectrometer complemented high-level theoretical calculations. key species such as intermediates and radicals together with products involved the are observed online confirmed spectra. reaction potential energy surfaces transient C4H5O C4H6OCl radicals, formed from hydrogen-abstraction addition MACR Cl...