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|
| Type |
Poster Presentation |
| Area |
Analytical Chemistry |
| Room No. |
Event Hall |
| Time |
4월 19일 (목요일) 11:00~12:30 |
| Code |
ANAL.P-238 |
| Subject |
Analysis of polycyclic aromatic hydrocarbons using APCI-MS and IMS |
| Authors |
Chae eun Son, Sung-Seen Choi*
Department of Chemistry, Sejong University, Korea
|
| Abstract |
Polycyclic aromatic hydrocarbons (PAHs) are usually produced by incomplete combustion of coal fuel and exist in asphalt, urban air particulates, soil, and so on. Some PAHs have been considered as causing carcinogenic, mutagenic effects on humans and aquatic creature. Gas chromatography (GC) has been used to analyze low molecular weight PAHs, while high molecular weight PAHs can be analyzed using liquid chromatography (LC). UV detector has been usually utilized with LC because PAHs consist of UV absorbing chemical structure but it is needed authentic PAHs. Atmospheric pressure chemical ionization-mass spectrometry (APCI-MS) with LC can be used for detecting PAHs without standard materials. Ion mobility spectrometry (IMS) has been used on detection of hazardous materials such as explosives, drugs, and so on as hand-held device. Since PAHs have stable chemical structures, the ionization doesn’t occur well and these are not sensitive by APCI-MS. Proton donating agents or dopants can be used for settling the problem. Use of a dopant can improve detection sensitivity of PAHs for mass spectrometry. In this study, improvement of detection limit of PAHs for APCI-MS analysis using a dopant was investigated. Analysis of PAHs using IMS with equipped corona discharge ionization source was also carried out and the dopant effect was also investigated. The analysis results using APCI-MS and IMS were compared and discussed. |
| E-mail |
marefrigoris93@gmail.com |
|
121st General Meeting of the KCS