Kyushu University Academic Staff Educational and Research Activities Database
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Tomoko Imasaka Last modified date:2017.11.13



Graduate School


E-Mail
Phone
092-553-4462
Fax
092-553-4462
Academic Degree
Dr. of Engineering
Field of Specialization
Theoretical Chemistry, Physical Chemistry, Statistical Mechanics, Analytical Chemistry
Research
Research Interests
  • The high sensitive and exhaustive measurement of the chemical munitions agent
    -Theoretical prediction of the spectrophotometric property by the quantum chemistry calculation-
    keyword : Quantum Chemical Calculation
    2015.04~2018.03.
  • Analysis of Persistent Organic Pollutants (POPs) in the Environment Using a Femtosecond Laser
    keyword : POPs
    2014.04~2016.03.
  • Comprehensive high sensitivity detection of explosives terrorism based on the theoretical prediction by quantum chemical calculations
    keyword : quantum chemical calculation, mass spectrum
    2012.04~2015.03.
  • The theoretical prediction of the spectrum of ultra-high-speed optical ionization mass spectrometry of terrorism-related material
    keyword : quantum chemical calculation, mass spectrum, ionization energy
    2008.04.
  • Data Processing Technique in Mass Spectrometry
    keyword : reliability factor, mass spectrum, dioxins, Fortran programming
    2007.04.
  • The theoretical prediction of the mass spectrum in quiantum computational chemistry.
    keyword : dioxins, S0-S1 transition, ionization potential
    2001.04.
  • Mean-Field Theory of the Orientational Ordering of Dipolar Guest Molecules in β-Hydroquinone Clathrate
    keyword : statistical mechanics, theoretical chemistry, clathrate
    1988.05.
Current and Past Project
  • Comprehensive high sensitivity detection of explosives terrorism based on the theoretical prediction by quantum chemical calculations
Academic Activities
Reports
1. The calculation of spectrum, Shoji Hiorokawa, Tomoko Imasaka, Masataka Oishi, Yoshikazu Oyakawa, NEDO.
2. The dipole-dipole interaction and the phase transition of SO2-β Quinol clathrare, Tomoko Imasaka and Shoji Hirokawa, Division of the Organic Crystals, The Chemical Society of Japan.
Papers
1. T. Fujii, T. Imasaka, T. Imasaka, Use of chemical conversion for determination of nitrated aromatic hydrocarbons using femtosecond ionization mass spectrometry, Analytica Chimica Acta, DOI: 10.1016/j.aca.2017.09.049, 996, 2017.10.
2. A. Li, D.P.Dinh, T. Imasaka, T. Imasaka, Suppression of Fragmentation in Multiphoton Ionization Mass Spectrometry Using a Near-infrared Femtosecond Laser as an Ionization Source, Analyst, DOI: 10.1039/c7an01172e, 142, 2017.09.
3. Akifumi Hamachi, Tomoko Imasaka, Hiroshi Nakamura, Totaro Imasaka, Adan Li, Determination of Nerve Agent Metabolites by Ultraviolet Femtosecond Laser Ionization Mass Spectrometry, Analytical Chemistry, 89, 9, 2017.04.
4. Shimpei Shibuta, Tomoko Imasaka, Totaro Imasaka, Determination of Fragrance Allergens by Ultraviolet Femtosecond Laser Ionization Mass Spectrometry, Analytical Chemistry, DOI:10.1021/acs.analchem.6b03229, 88, 2016.10.
5. Yang Xixiang, Tomoko Imasaka, Li Adan, Totaro Imasaka, Determination of hexachlorocyclohexane by gas chromatography/multiphoton onization/time-of-flight mass spectrometr, Journal of The American Society for Mass Spectrometry, DOI: 10.1007/s13361-016-1497-7, 27, 2016.09.
6. Yuanyuan Tang, Tomoko Imasaka, Shigekazu Yamamoto, Totaro Imasaka, Determination of Polycyclic Aromatic Hydrocarbons and Their Nitro-, Amino- Derivatives Absorbed on Particulate Matter 2.5 by Multiphoton Ionization Mass Spectrometry Using Far-, Deep-, and Near-Ultraviolet Femtosecond Lasers, Chemosphere, 152, 2016.06.
7. Tomoko Imasaka, Akifumi Hamachi, Tomoya Okuno, Totaro Imasaka, A Simple Method for Evaluation of Pulse Width of an Ultraviolet Femtosecond Laser Used in Two-Photon Ionization Mass Spectrometry, Applied Sciences, 6, 5, 2016.05.
8. V.T.T. Duong, V. Duong, N.T.H. Lien, T. Imasaka, Y. Tang, S. Shibuta, A. Hamachi, D. Q. Hoa, T. Imasaka, Detection of polychlorinated biphenyls in transformer oils in Vietnam by multiphoton ionization mass spectrometry using a far-ultraviolet femtosecond laser as an ionization source, Talanta, 149, 2016.03.
9. Noboru Itouyama, Taiki Matsui, Shigekazu Yamamoto, Tomoko Imasaka, Totaro Imasaka, Analysis of Parent/Nitrated Polycyclic Aromatic Hydrocarbons in Particulate Matter 2.5 Based on Femtosecond Ionization Mass Spectrometry, Journal of The American Society for Mass Spectrometry, 27, 2016.02.
10. Tang Yuanyuan, Tomoko Imasaka, Shigekazu Yamamoto, Totaro Imasaka, Multiphoton Ionization Mass Spectrometry of Nitrated Polycyclic Aromatic Hydrocarbons, Talanta, 140, 2015.08.
11. Yoshinari Takao, Tomoko Imasaka, Yuichiro Kida, Totaro Imasaka, Autocorrelation and Frequency-Resolved Optical Gating Measurements Based on the Third Harmonic Generation in a Gaseous Medium, Applied Sciences, 5, 2015.06.
12. Tomoko Imasaka, Akifumi Hamachi, Tomoya Okuno, Totaro Imasaka, A simple method for the measurement of the optical pulse width on-site the mass spectrometer, 2015 Conference on Lasers and Electro-Optics (CLEO), JTu5A.7, 2015.05.
13. Akifumi Hamachi, Tomoya Okuno, Tomoko Imasaka, Yuichiro Kida, Totaro Imasaka, Resonant and nonresonant multiphoton ionization processes in mass spectrometry of explosives, Analytical Chemistry , 87, 2015.03.
14. Tomoko Imasaka, Totaro Imasaka, An Evaluation of the Spectral Properties of Nerve Agents for Laser Ionization Mass Spectrometry, Analytical Sciences, 30, 12, 2014.12.
15. Ryota Ezoe, Tomoko Imasaka, Totaro Imasaka, Determination of Triacetone Triperoxide Using Ultraviolet Femtosecond Multiphoton
Ionization Time-of-Flight Mass Spectrometry, Analytica Chimica Acta, 853, 2014.11.
16. Tomoya Okuno, Tomoko Imasaka, Yuichiro Kida, Totaro Imasaka, Autocorrelator for measuring an ultrashort optical pulse width in the ultraviolet region based on two-photon ionization of an organic compound , Optics Communications, 310, 2014.01.
17. Tomoko Imasaka, Tomoya Okuno, Totaro Imasaka, The Search for a molecule to measure an autocorrelation trace of the second/third harmonic emission of a Ti:sapphire laser based on two-photon resonant excitation and subsequent one photon ionization, Applied Physics B:Lasers and Optics, 113, 4, 2013.05.
18. Tomoko Imasaka and Totaro Imasaka, Searching for a molecule with a wide frequency domain for non-resonant two-photon ionization to measure the ultrashort optical pulse width, Opt. Commun. , 285, 3514-3518, 2012.06.
19. Tomoko Imasaka and Totaro Imasaka, Molecules with a One Octave Frequency Domain for the Measurement of the 1-fs Optical Pulse Width, Conference on Lasers and Electro-Optics (CLEO), JTh2A.15, 2012.05.
20. Osamu Shitamichi, Tomoko Imasaka, Tomohiro Uchimura, Totaro Imasaka, Multiphoton Ionization/Mass Spectrometry of Polybrominated Diphenyl Ethers, Analytical Methods, 3, 2322-2327, 2011.10.
21. Li Adan, Tomoko Imasaka, Tomohiro Uchimura, Totaro Imasaka, Analysis of Pesticides by Gas Chromatography / Multiphoton Ionization / Mass Spectrometry Using a Femtosecond Laser, Analytica Chimica Acta, 701, 52-59, 2011.07.
22. Yuka Watanabe-Ezoe, Xing Li, Tomoko Imasaka, Tomohiro Uchimura, Totaro Imasaka, Gas Chromatography/Femtosecond Multiphoton Ionization/Time-of-Flight Mass Spectrometry of Dioxins, Analytical Chemistry, 82, 6519-6525, 2010.07.
23. Takashi Shimizu, Yuka Watanabe-Ezoe, Satoshi Yamaguchi, Hiroko Tsukatani, Tomoko Imasaka, Shin-ichi Zaitsu, Tomohiro Uchimura, and Totaro Imasaka, Enhancement of Molecular Ions in Mass Spectrometry Using an Ultrashort Optical Pulse in Multiphoton Ionization, Analytical Chemistry, 82, 3441-3444, 82, 3441-3444, 2010.04.
24. Shoji Hirokawa, Tomoko Imasaka, Totaro Imasaka, The S-1 ← S-0 0-0 transition energies of polychlorinated dibenzofurans (PCDFs) revisited: CIS(D) and MP2 calculations with correction for correlation energies, Journal of Molecular Structure -Theochem, 915, 1-3, 79-85, Volume: 915 Issue: 1-3 Pages: 79-85 , 2009.12.
25. Satoshi Yamaguchi, Tomohiro Uchimura, Tomoko Imasaka, Totaro Imasaka, Gas chromatography/time-of-flight mass spectrometry of triacetone triperoxide based on femtosecond laser ionization, Rapid Communications in Mass Spectrometry , 23, 19, 3101-3106, Volume: 23 Issue: 19 Pages: 3101-3106 , 2009.10.
26. Hiroko Tsukatani, Hiroki Okudaira, Tomohiro Uchimura, Tomoko Imasaka,Totaro Imasaka, Selective Ionization of 2,4-Xylenol in Mass Spectrometry Using a Tunable Laser and Supersonic Jet Technique, Analytical Sciences, 25, 5, 599-604, Volume: 25 Issue: 5 Pages: 599-604, 2009.05.
27. Tomoko Imasaka, Nami Nakamura, Yuji Sakoda, Satoshi Yamaguchi, Yuka Watanabe-Ezoe, Tomohiro Uchimura, Totaro Imasaka, Data processing technique in gas chromatography/time-of-flight mass spectrometry, Analyst (Royal Soc Chemistry), 134, 4, 712-718, Volume: 134 Issue: 4 Pages: 712-718, 2009.02.
28. Satoshi Yamaguchi, Fumiaki Kira, Yuki Miyoshi, Tomohiro Uchimura, Yuka Watanabe-Ezoe, Shin-ichi Zaitsu , Tomoko Imasaka, Totaro Imasaka, Near-ultraviolet femtosecond laser ionization of dioxins in gas chromatography/time-of-flight mass spectrometry, Analytica Chimica Acta , 63, 12, 229-233, Volume: 632 Issue: 2 Pages: 229-233 , 2009.01.
29. Yuka Watanabe-Ezoe, Nami Nakamura, Tomohiro Uchimura, Satoshi Yamaguchi, Tomoko Imasaka, Totaro Imasaka, Gas Chromatography/Multiphoton Ionization/Mass Spectrometry of Pentachlorodibenzofurans in Soils, Organohalogen Compounds, 70, 2396-2399 , Vol. 70, pp.2396-2399, 2008.12.
30. Tomoko Imasaka, Shoji Hirokawa, Totaro Imasaka, Ab initio MO study on the S-1 ← S-0 origin transition energies of polychlorodibenzofurans (PCDFs), Journal of Molecular Structure-Theochem, 774, 1-3, 7-12, Volume: 774 Issue: 1-3 Pages: 7-12, 2006.11.
31. Shoji Hirokawa, Tomoko Imasaka, Yoshikazu Oyakawa, Masataka Oishi, Totaro Imasaka, Conformational changes and S-1 ← S-0 origin transition energies: Polychlorinated biphenyls (PCBs), Journal of Molecular Structure-Theochem, 772, 1-3, 31-37, Volume: 772 Issue: 1-3 Pages: 31-37 , 2006.10.
32. Shoji Hirokawa, Tomoko Imasaka, Totaro Imasaka, Chlorine substitution pattern, molecular electronic properties, and the nature of the ligand-receptor interaction: Quantitative property-activity relationships of polychlorinated dibenzofurans, Chemical Research in Toxicology (American Chemical Society), 18, 2, 232-238, Volume: 18 Issue: 2 Pages: 232-238 , 2005.02.
33. Tomoko Imasaka, Shoji Hirokawa , Additivity of electron correlation energy and the ab initio MO calculation of (0-0) S-1 ← S-0 transition energies: polychlorinated dibenzofurans, Journal of Molecular Structure-Theochem, 710, 1-3, 19-23, Volume: 710 Issue: 1-3 Pages: 19-23, 2004.11.
34. Shoji Hirokawa,Tomoko Imasaka,Yoshihiro Urakami, Ab initio MO study on the S-1 ← S-0 transitions of polychlorinated dibenzo-p-dioxins, Journal of Molecular Structure-Theochem, 3, 229-237, Volume: 622 Issue: 3 Pages: 229-237, 2003.03.
35. Tomoko Imasaka, Shoji Hirokawa, Mean-field theory of the orientational ordering of dipolar guest molecules in beta-hydroquinone clathrate of SO2 and D2S, Journal of the Physical Society of Japan , 70, 9, 2603-2612, Volume: 70 Issue: 9 Pages: 2603-2612 , 2001.09.
36. Tomoko Imasaka, Shoji Hirokawa, Effects of a crystal field on the orientational phase transition in a system of dipoles: A mean-field study of SO2-beta-hydroquinone clathrate, Journal of the Physical Society of Japan , 66, 5, 1364-1370, Volume: 66 Issue: 5 Pages: 1364-1370 , 1997.05.
37. Shoji Hirokawa, Tomoko Imasaka,Takasuke Matsuo, Quantum Effects on the Orientational Ordering of H2S and D2S Molecules Enclosed in Beta-Quinol Clathrate, Journal of the Physical Society of Japan, 63, 2, 593-601, Volume: 63 Issue: 2 Pages: 593-601 , 1994.02.
38. Shoji Hirokawa, Tomoko Imasaka, Effect of a Cryatal-Field on the Orientational of H2S Molecules Enclosed in Beta-Quinol Clathrate, Journal of the Physical Society of Japan , 59, 10, 3797-3798, Volume: 59 Issue: 10 Pages: 3797-3798 , 1990.10.
39. Shoji Hirokawa, Tomoko Iwasaki (Imasaka), Orientational Order of Guest H2S Molecules in β-Quinol Clathrate, Journal of the Physical Society of Japan, 57, 11, 3843-3850, Volume: 57 Issue: 11 Pages: 3843-3850 , 1988.11.
Presentations
1. T. Ju, K. Yoshinaga, H. Nakamura, L. Adan, T. Imasaka, T. Imasaka, Time-correlated single ion counting in time-of-flight femtosecond-laser-ionization mass spectrometry, 日本分析化学会第66年会, 2017.09.11.
2. L. Adan, P.D. Thang, T. Imasaka, T. Imasaka, Femtosecond laser induced ionization and dissociation of pentachlorobenzene studied by time-of-flight mass spectrometry, 日本分析化学会第66年会, 2017.09.11.
3. K. Kojima, T. Imasaka, T. Imasaka, Femtosecond ionization mass spectrometry -A new tool for practical trace analysis in environmental science and technology-, Euroanalysis 2017, 2017.08.29.
4. T. Imasaka, X. Yang, L. Adan, T. Imasaka, Theoretical calculation of the elution order of (+/-)-α-hexachlorocyclohexane separated by a stationary phase consisting of permethylated γ-cyclodextrin in gas chromatography, Euroanalysis 2017, 2017.08.29.
5. Akifumi Hamachi, Tomoko Imasaka, Totaro Imasaka, Femtosecond ionization mass spectrometry: an advanced tool for the analysis of pollutants, explosives, and nerve agents, 13th Asian Conference on Analytical Sciences (ASIANALYSIS XIII), 2016.12.11.
6. Takuya Fujii, Tomoko Imasaka, Totaro Imasaka, An ultraviolet femtosecond laser for multiphoton ionization in mass spectrometry, Joint 13th Asia Pacific Physics Conference and 22nd Australian Institute of Physics Congress, 2016.12.08.
7. Akifumi Hamachi, Hiroaki Kouno, Tomoko Imasaka, Totaro Imasaka, Efficient nonresonant multiphoton ionization in the femtosecond region, Joint 13th Asia Pacific Physics Conference and 22nd Australian Institute of Physics Congress, 2016.12.07.
8. Shinpei Shibuta, Tomoko Imasaka, Totaro IMASAKA, Femtosecond Laser Ionization in Mass Spectrometry and Its Application to Trace Analysis of Allergy Substances in Fragrances., Seminar of the Joint Mass Spectrometry Centre, the Virtual Helmholtz Institute HICE-Aerosols & Health and the Chair of Analytical Chemistry@University of Rostock: Summer term 2016, 2016.06.06.
9. Shinpei Shibuta, Tomoko Imasaka, Totaro Imasaka, Determination of Allergy Substances in Fragrance by Capillary Gas Chromatography / Laser Ionization Mass Spectrometry Using a Femtosecond Laser as an Ionization Source., 40th International Symposium on Capillary Chromatography and 13th GCxGC Symposium, 2016.05.
10. Tomoko Imasaka, Totaro Imasaka, Spectral Properties of Allergy Substances in Fragrance Calculated for Use in Multiphoton Ionization Mass Spectrometry, 40th International Symposium on Capillary Chromatography and 13th GCxGC Symposium, 2016.05.
11. Y. Kida, T. Imasaka, T. Imasaka, Generation of Ultrashort Optical Pulses by Four-Wave Mixing in a Gaseous Medium, The Winter Colloquium on the Physics of Quantum Electronics (PQE), 2016.01.07.
12. A. Hamachi, T. Imasaka, Y. Mori, V. Duong, Y. Kida, T. Imasaka, Determination of nerve agent metabolites by gas chromatography/multiphoton ionization/time-of-flight mass spectrometry, 2015 International Chemical Congress of Pacific Basin Societies, 2015.12.18.
13. Xixiang Yang, Tomoko Imasaka, Totaro Imasaka, Determination of Hexachlorocyclohexane Isomers by Femtosecond Laser Using Gas Chromatography /Multiphoton Ionization / Mass Spectrometry, The 64th Conference of the Japan Societry for Analytical Chemistry, 2015.09.09.
14. Tomoko Imasaka, Akifumi Hamachi, Tomoya Okuno, Totaro Imasaka, A simple method for the measurement of the optical pulse width on-site the mass spectrometer, Conference on Lasers and Electro-Optics 2015 (CLEO:2015), 2015.05.12.
15. Ryota Ezoe, Tomoko Imasaka, Totaro IMASAKA, Trace analysis of triacetone triperoxide using gas chromatography combined with femtosecond laser ionization mass spectrometry, ISC 2014, Saltburg, Austria, 30th International Symposium on Chromatography, 2014.09.15.
16. Tomoko Imasaka, Totaro IMASAKA, Spectral properties evaluated using quantum chemical calculation for the measurement of the explosives, ISC 2014 - Salzburg Austria, 30th International Symposium on Chromatography, 2014.09.15.
17. Yuichiro Kida, Kazuki Sakamoto, Osamu Shitamichi, Tomoya Okuno, Tomoko Imasaka, Totaro IMASAKA, Generation of Numerous Raman Sidebands for Fourier Synthesis of an Ultrashort Optical Pulse beyond the 1-fs Barrier, the 44th Winter Colloquim on the Physics of Quantum Electronics, 2014.01.08.
18. Tomoya Okuno, Tomoko Imasaka, Yuichiro Kida, Totaro IMASAKA, Mass Spectrometer for Measuring an Autocorrelation Trace of an Ultrashort Optical Pulse in the Ultraviolet Region Based on Two-Photon Ionization of an Organic Compound, The Twelfth Asian Conference on Analytical Sciences, 2013.08.24.
19. Tomoko Imasaka, Tomoya Okuno, Totaro IMASAKA, Mass Spectrometer for measuring a pulse width of the harmonic emissions of a Ti:sapphire laser based on two-photon excitation and subsequent one photon ionization, 4th Asia Oceania Mass Spectrometry Conference and 10th Taiwan Society for Mass Spectrometry Annual Conference , 2013.07.11.
20. T. Shimizu, T. Imasaka, S. Zaitsu, T. Uchimura, T. Imasaka, Development of a Laser with an Ultimately-Short Optical Pulse Width for Impulsive Ionization to Obtain a Molecular Ion in Mass Spectrometry, IUPAC International Congress on Analytical Sciences 2011 (ICAS 2011), 2011.05.24.
21. The theoretical study of the physical property of Triacetonetriperoxide, explosive used for terrorism, Tomoko Imasaka, Hiroko Tsukatani, Takashi Shimizu, Shin-ichi Zaitsu, Tomohiro Uchimura and Totaro Imasaka, The Japan Society of Analytical Chemistry.
22. The data processing technique in Gas Chromatography/Multiphoton Ionization/Time-of-Flight Mass Spectrometry, Tomoko Imasaka, Satoshi Yamaguchi, Tomohiro Uchimura and Totaro Imasaka, The Chemical Society of Japan.
23. The MO study of S1←S0 transition energies and the additivity rule with respect to electron correlation energy of polychlorodibenzofurans, Tomoko Imasaka and Shoji Hirokawa, The Chemical Society of Japan.
24. Ab initio MO study of the structure of S0 and S1 states and S1←S0 transition of Polychlorodibenzofurans(PCDFs), Tomoko Imasaka and Shoji Hirokawa, The Chemical Society of Japan.
25. The theoretical study of the effect of a crystal field and the cavity occupancy on the orientational ordering of SO2- and D2S-β-Quinol Clathrate, Tomoko Imasaka and Shoji Hirokawa, The Chemical Society of Japan.
26. The cavity occupancy and the phase transition of β-Quinol Clathrate, Tomoko Imasaka and Shoji Hirokawa, The Chemical Society of Japan.
27. The orientational ordering and the phase transition of the SO2-β-Quinol clathrate, Tomoko Imasaka and Shoji Hirokawa, The Chemical Society of Japan.
28. The guest-guest interaction and the phase transition of the SO2- and D2S-β-Quinol Clathrate, Shoji Hirokawa and Tomoko Imasaka, The Chemical Society of Japan.
Membership in Academic Society
  • The American Chemical Society
  • The Optical Society (OSA)
  • The Chemical Society of Japan
  • The Japan Society of Applied Physics
  • The Japan Society for Analytical Chemistry
Educational
Other Educational Activities
  • 2013.11.
  • 2012.11.
  • 2011.11.
  • 2010.11.
  • 2009.11.
  • 2008.12.
  • 2007.10.
  • 2006.12.