Search Results - "Hamachi, Akifumi"

Determination of Nerve Agent Metabolites by Ultraviolet Femtosecond Laser Ionization Mass Spectrometry by Hamachi, Akifumi, Imasaka, Tomoko, Nakamura, Hiroshi, Li, Adan, Imasaka, Totaro

“…Nerve agent metabolites, i.e., isopropyl methylphosphonic acid (IMPA) and pinacolyl methylphosphonic acid (PMPA), were derivatized by reacting them with…”
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A Simple Method for the Evaluation of the Pulse Width of an Ultraviolet Femtosecond Laser Used in Two-Photon Ionization Mass Spectrometry by Imasaka, Tomoko, Hamachi, Akifumi, Okuno, Tomoya, Imasaka, Totaro

“…A simple method was proposed for on-site evaluation of the pulse width of an ultraviolet femtosecond laser coupled with a mass spectrometer. This technique was…”
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Resonant and Nonresonant Multiphoton Ionization Processes in the Mass Spectrometry of Explosives by Hamachi, Akifumi, Okuno, Tomoya, Imasaka, Tomoko, Kida, Yuichiro, Imasaka, Totaro

“…Multiphoton ionization processes were studied for three types of explosives using a line-tunable ultraviolet femtosecond laser. When peroxides such as…”
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Detection of polychlorinated biphenyls in transformer oils in Vietnam by multiphoton ionization mass spectrometry using a far-ultraviolet femtosecond laser as an ionization source by Duong, Vu Thi Thuy, Duong, Vu, Lien, Nghiem Thi Ha, Imasaka, Tomoko, Tang, Yuanyuan, Shibuta, Shinpei, Hamachi, Akifumi, Hoa, Do Quang, Imasaka, Totaro

“…Polychlorinated biphenyls (PCBs) in transformer and food oils were measured using gas chromatography combined with multiphoton ionization mass spectroscopy. An…”
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A simple method for the measurement of the optical pulse width on-site the mass spectrometer by Imasaka, Tomoko, Hamachi, Akifumi, Okuno, Tomoya, Imasaka, Totaro

“…The laser pulse width was measured on-site the mass spectrometer by scanning a dispersion in the pulse compressor. A pulse width of 49 fs measured was close to…”
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