| Title: | Rapid and Direct Assessment of Asphalt Volatile Organic Compound Emission Based on Carbon Fiber Ionization Mass Spectrometry |
| Author(s): | Wang S; Yang C; Zhao J; Li C; Fan X; |
| Address: | "College of Science, Chang'an University, Xi'an, Shaanxi 710064, China. Shaanxi Coal Chemical Industry Technology Research Institute Co., Ltd., Xi'an, Shaanxi 710064, China. College of Future Transportation, Chang'an University, Xi'an, Shaanxi 710064, China. College of Civil Engineering, Chang'an University, Xi'an, Shaanxi 710064, China" |
| ISSN/ISBN: | 2470-1343 (Electronic) 2470-1343 (Linking) |
| Abstract: | "Due to the complicacy of asphalt fumes, the analytical methods for investigating volatile organic compounds (VOCs) are very limited. In this study, a direct and real-time analysis method based on carbon fiber ionization mass spectrometry (CFI-MS), an ambient mass spectrometric technique, was established and successfully applied in the analysis of asphalt VOCs. The asphalt VOCs can be directly detected in the open atmosphere without the collection step of asphalt fumes, and the mass spectra of one asphalt sample can be obtained in a few seconds in both positive and negative ion modes. By investigating the mass spectral changes of asphalt fumes at different heating temperatures ranging from 50 to 200 degrees C, the temperature factor of asphalt fume emission was demonstrated in this work. The research results demonstrate that the complexity of asphalt fumes is positively related to the applied temperature. Moreover, the VOCs of saturates, aromatics, resins, and asphaltenes fractions were also analyzed by the direct analysis method. The result shows that aromatics contribute most to the emission of VOCs. In addition, the obtained mass spectra combined with the principal component analysis method show the great potential to quickly screen VOC inhibitors of asphalt materials" |
| Notes: | "PubMed-not-MEDLINEWang, Shanshan Yang, Chenchen Zhao, Junteng Li, Chenyao Fan, Xinhao eng 2023/04/18 ACS Omega. 2023 Mar 29; 8(14):12968-12979. doi: 10.1021/acsomega.3c00163. eCollection 2023 Apr 11" |
