抄録
Abstract In order to suppress the fragmentation and improve the sensitivity for determination of nitrated polycyclic aromatic hydrocarbons (NPAHs), the mechanism of multiphoton ionization was studied for the following representative NPAHs, 9-nitroanthracene, 3-nitrofluoranthene, and 1-nitropyrene. The analytes were extracted from the PM2.5 on the sampling filter ultrasonically, and were measured using gas chromatography/multiphoton ionization/time-of-flight mass spectrometry with a femtosecond tunable laser in the range from 267 to 405 nm. As a result, a molecular ion was observed as the major ion and fragmentation was suppressed at wavelengths longer than 345 nm. Furthermore, the detection limit measured at 345 nm was measured to be the subpicogram level. The organic compounds were extracted from a 2.19 mg sample of particulate matter 2.5 (PM2.5), and the extract was subjected to multiphoton ionization mass spectrometry after gas chromatograph separation. The background signals were drastically suppressed at 345 nm, and the target NPAHs, including 9-nitroanthracene and 1-nitropyrene, were detected, and their concentrations were determined to be 5 and 3 pg/m3, respectively.
| 元の言語 | 英語 |
|---|---|
| 記事番号 | 15460 |
| ページ（範囲） | 109-114 |
| ページ数 | 6 |
| ジャーナル | Talanta |
| 巻 | 140 |
| DOI | |
| 出版物ステータス | 出版済み - 8 1 2015 |
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All Science Journal Classification (ASJC) codes
- Analytical Chemistry
これを引用
Multiphoton ionization mass spectrometry of nitrated polycyclic aromatic hydrocarbons. / Tang, Yuanyuan; Imasaka, Tomoko; Yamamoto, Shigekazu; Imasaka, Totaro.
：: Talanta, 巻 140, 15460, 01.08.2015, p. 109-114.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Multiphoton ionization mass spectrometry of nitrated polycyclic aromatic hydrocarbons
AU - Tang, Yuanyuan
AU - Imasaka, Tomoko
AU - Yamamoto, Shigekazu
AU - Imasaka, Totaro
PY - 2015/8/1
Y1 - 2015/8/1
N2 - Abstract In order to suppress the fragmentation and improve the sensitivity for determination of nitrated polycyclic aromatic hydrocarbons (NPAHs), the mechanism of multiphoton ionization was studied for the following representative NPAHs, 9-nitroanthracene, 3-nitrofluoranthene, and 1-nitropyrene. The analytes were extracted from the PM2.5 on the sampling filter ultrasonically, and were measured using gas chromatography/multiphoton ionization/time-of-flight mass spectrometry with a femtosecond tunable laser in the range from 267 to 405 nm. As a result, a molecular ion was observed as the major ion and fragmentation was suppressed at wavelengths longer than 345 nm. Furthermore, the detection limit measured at 345 nm was measured to be the subpicogram level. The organic compounds were extracted from a 2.19 mg sample of particulate matter 2.5 (PM2.5), and the extract was subjected to multiphoton ionization mass spectrometry after gas chromatograph separation. The background signals were drastically suppressed at 345 nm, and the target NPAHs, including 9-nitroanthracene and 1-nitropyrene, were detected, and their concentrations were determined to be 5 and 3 pg/m3, respectively.
AB - Abstract In order to suppress the fragmentation and improve the sensitivity for determination of nitrated polycyclic aromatic hydrocarbons (NPAHs), the mechanism of multiphoton ionization was studied for the following representative NPAHs, 9-nitroanthracene, 3-nitrofluoranthene, and 1-nitropyrene. The analytes were extracted from the PM2.5 on the sampling filter ultrasonically, and were measured using gas chromatography/multiphoton ionization/time-of-flight mass spectrometry with a femtosecond tunable laser in the range from 267 to 405 nm. As a result, a molecular ion was observed as the major ion and fragmentation was suppressed at wavelengths longer than 345 nm. Furthermore, the detection limit measured at 345 nm was measured to be the subpicogram level. The organic compounds were extracted from a 2.19 mg sample of particulate matter 2.5 (PM2.5), and the extract was subjected to multiphoton ionization mass spectrometry after gas chromatograph separation. The background signals were drastically suppressed at 345 nm, and the target NPAHs, including 9-nitroanthracene and 1-nitropyrene, were detected, and their concentrations were determined to be 5 and 3 pg/m3, respectively.
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UR - http://www.scopus.com/inward/citedby.url?scp=84927132295&partnerID=8YFLogxK
U2 - 10.1016/j.talanta.2015.03.027
DO - 10.1016/j.talanta.2015.03.027
M3 - Article
VL - 140
SP - 109
EP - 114
JO - Talanta
JF - Talanta
SN - 0039-9140
M1 - 15460
ER -