| Title: | Photoionization-induced NO(+) chemical ionization time-of-flight mass spectrometry for rapid measurement of aldehydes and benzenes in vehicles |
| Author(s): | Li H; Jiang J; Hua L; Chen P; Xie Y; Fan Z; Tian D; Li H; |
| Address: | "College of Instrumentation & Electrical Engineering, Jilin University, 938 Ximinzhu Road, Changchun, Jilin, 130061, People's Republic of China. Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning, 116023, People's Republic of China; Dalian Key Laboratory for Online Analytical Instrumentation, 457 Zhongshan Road, Dalian, Liaoning, 116023, People's Republic of China. Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning, 116023, People's Republic of China; Dalian Key Laboratory for Online Analytical Instrumentation, 457 Zhongshan Road, Dalian, Liaoning, 116023, People's Republic of China. Electronic address: lhua@dicp.ac.cn. Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning, 116023, People's Republic of China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, People's Republic of China. College of Instrumentation & Electrical Engineering, Jilin University, 938 Ximinzhu Road, Changchun, Jilin, 130061, People's Republic of China. Electronic address: tiandi@jlu.edu.cn" |
| DOI: | 10.1016/j.talanta.2021.122722 |
| ISSN/ISBN: | 1873-3573 (Electronic) 0039-9140 (Linking) |
| Abstract: | "In-vehicle air pollution has become a major concern to public health in recent years. The traditional analytical methods for detection of volatile organic compounds (VOCs) pollutants in air are based on gas chromatography - mass spectrometry (GC-MS) or high-performance liquid chromatography (HPLC), including complicated pretreatment and separation procedures, which are not only time-consuming and labor-intensive, but also incapable of simultaneously measuring both aldehydes and benzenes. In this work, a new photoionization-induced NO(+) chemical ionization time-of-flight mass spectrometry (PNCI-TOFMS) was developed for real-time and continuous measurement of aldehydes and benzenes in vehicles. High-intensity NO(+) reactant ions could be generated by photoionization of NO reagent gas, and efficient chemical ionization between NO(+) reactant ions and analyte molecules occurred to produce adduct ions M.NO(+) at an elevated ion source pressure of 800 Pa. Consequently, the achieved LODs for aldehydes and benzenes were down to sub-ppbv within 60 s. The analytical capacity of this system was demonstrated by continuous and online monitoring of in-vehicle VOCs in a used car, exhibiting broad potential applications of the PNCI-TOFMS in air pollutants monitoring and in-vehicle air quality analysis" |
| Keywords: | *Air Pollutants/analysis Aldehydes Benzene Gas Chromatography-Mass Spectrometry *Volatile Organic Compounds/analysis Aldehydes and benzenes In-vehicle air Photoionization-induced NO(+) chemical ionization Rapid measurement Time-of-flight mass spectrometry; |
| Notes: | "MedlineLi, Hanwei Jiang, Jichun Hua, Lei Chen, Ping Xie, Yuanyuan Fan, Zhigang Tian, Di Li, Haiyang eng Netherlands 2021/09/15 Talanta. 2021 Dec 1; 235:122722. doi: 10.1016/j.talanta.2021.122722. Epub 2021 Jul 19" |
