Resonant and nonresonant multiphoton ionization processes in the mass spectrometry of explosives

Totaro Imasaka, Akifumi Hamachi, Tomoya Okuno, Tomoko Imasaka, Yuichiro Kida

研究成果: ジャーナルへの寄稿記事

26 引用 (Scopus)

抄録

Multiphoton ionization processes were studied for three types of explosives using a line-tunable ultraviolet femtosecond laser. When peroxides such as triacetone triperoxide (TATP) and hexamethylene triperoxide diamine (HMTD) were ionized through a nonresonant two-photon process, a molecular ion was dominantly observed by reducing the excess energy remaining in the ion. However, an aromatic nitro compound such as 2,4,6-trinitrotoluene (TNT) produced large signals arising from molecular and fragment ions by resonant two-photon ionization. In addition, only fragment ions were produced from a nonaromatic nitro compound such as 1,3,5-trinitroperhydro-1,3,5-triazine (RDX), even when a resonant two-photon ionization process was employed, suggesting that a further reduction in excess energy would be necessary if a molecular ion were to be observed.

元の言語英語
ページ(範囲)3027-3031
ページ数5
ジャーナルAnalytical Chemistry
87
発行部数5
DOI
出版物ステータス出版済み - 3 3 2015

Fingerprint

Ionization
Mass spectrometry
Ions
Nitro Compounds
Photons
Two photon processes
Trinitrotoluene
Peroxides
Ultrashort pulses

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry

これを引用

Resonant and nonresonant multiphoton ionization processes in the mass spectrometry of explosives. / Imasaka, Totaro; Hamachi, Akifumi; Okuno, Tomoya; Imasaka, Tomoko; Kida, Yuichiro.

:: Analytical Chemistry, 巻 87, 番号 5, 03.03.2015, p. 3027-3031.

研究成果: ジャーナルへの寄稿記事

Imasaka, Totaro ; Hamachi, Akifumi ; Okuno, Tomoya ; Imasaka, Tomoko ; Kida, Yuichiro. / Resonant and nonresonant multiphoton ionization processes in the mass spectrometry of explosives. :: Analytical Chemistry. 2015 ; 巻 87, 番号 5. pp. 3027-3031.
@article{e4913fe9ed1c40e6b6d94677f6a8634b,
title = "Resonant and nonresonant multiphoton ionization processes in the mass spectrometry of explosives",
abstract = "Multiphoton ionization processes were studied for three types of explosives using a line-tunable ultraviolet femtosecond laser. When peroxides such as triacetone triperoxide (TATP) and hexamethylene triperoxide diamine (HMTD) were ionized through a nonresonant two-photon process, a molecular ion was dominantly observed by reducing the excess energy remaining in the ion. However, an aromatic nitro compound such as 2,4,6-trinitrotoluene (TNT) produced large signals arising from molecular and fragment ions by resonant two-photon ionization. In addition, only fragment ions were produced from a nonaromatic nitro compound such as 1,3,5-trinitroperhydro-1,3,5-triazine (RDX), even when a resonant two-photon ionization process was employed, suggesting that a further reduction in excess energy would be necessary if a molecular ion were to be observed.",
author = "Totaro Imasaka and Akifumi Hamachi and Tomoya Okuno and Tomoko Imasaka and Yuichiro Kida",
year = "2015",
month = "3",
day = "3",
doi = "10.1021/ac504667t",
language = "English",
volume = "87",
pages = "3027--3031",
journal = "Analytical Chemistry",
issn = "0003-2700",
publisher = "American Chemical Society",
number = "5",

}

TY - JOUR

T1 - Resonant and nonresonant multiphoton ionization processes in the mass spectrometry of explosives

AU - Imasaka, Totaro

AU - Hamachi, Akifumi

AU - Okuno, Tomoya

AU - Imasaka, Tomoko

AU - Kida, Yuichiro

PY - 2015/3/3

Y1 - 2015/3/3

N2 - Multiphoton ionization processes were studied for three types of explosives using a line-tunable ultraviolet femtosecond laser. When peroxides such as triacetone triperoxide (TATP) and hexamethylene triperoxide diamine (HMTD) were ionized through a nonresonant two-photon process, a molecular ion was dominantly observed by reducing the excess energy remaining in the ion. However, an aromatic nitro compound such as 2,4,6-trinitrotoluene (TNT) produced large signals arising from molecular and fragment ions by resonant two-photon ionization. In addition, only fragment ions were produced from a nonaromatic nitro compound such as 1,3,5-trinitroperhydro-1,3,5-triazine (RDX), even when a resonant two-photon ionization process was employed, suggesting that a further reduction in excess energy would be necessary if a molecular ion were to be observed.

AB - Multiphoton ionization processes were studied for three types of explosives using a line-tunable ultraviolet femtosecond laser. When peroxides such as triacetone triperoxide (TATP) and hexamethylene triperoxide diamine (HMTD) were ionized through a nonresonant two-photon process, a molecular ion was dominantly observed by reducing the excess energy remaining in the ion. However, an aromatic nitro compound such as 2,4,6-trinitrotoluene (TNT) produced large signals arising from molecular and fragment ions by resonant two-photon ionization. In addition, only fragment ions were produced from a nonaromatic nitro compound such as 1,3,5-trinitroperhydro-1,3,5-triazine (RDX), even when a resonant two-photon ionization process was employed, suggesting that a further reduction in excess energy would be necessary if a molecular ion were to be observed.

UR - http://www.scopus.com/inward/record.url?scp=84924044313&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84924044313&partnerID=8YFLogxK

U2 - 10.1021/ac504667t

DO - 10.1021/ac504667t

M3 - Article

VL - 87

SP - 3027

EP - 3031

JO - Analytical Chemistry

JF - Analytical Chemistry

SN - 0003-2700

IS - 5

ER -