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LASER ABLATION/SUPERSONIC BEAM/MULTIPHOTON IONIZATION/MASS SPECTROMETRY OF CHEMICAL SPECIES RESULTING FROM BIOLOGICAL AND SYNTHETIC POLYMERS

Research Project

Project/Area Number 06453110
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 工業分析化学
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

IMASAKA Totaro  KYUSHU UNIVERSITY FACULTY OF ENGINEERING,PROFESSOR, 工学部, 教授 (30127980)

Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥7,200,000 (Direct Cost: ¥7,200,000)
Fiscal Year 1995: ¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 1994: ¥4,000,000 (Direct Cost: ¥4,000,000)
KeywordsSUPERSONIC JET / LASER ABLATION / THERMAL DECOMPOSITION / LASER SPECTROSCOPY / MULTIPHOTON IONIZATION MASS SPECTROMETRY / FLUORESCENCE SPECTROMETRY / NUCLEIC ACIDS / SYNTHETIC POLYMERS
Research Abstract

The mass resolution of the reflectron time-of-flight mass spectrometer was greatly improved, and it readily allowed the assignment of the chlorine-containing compounds. Furthermore, the background signal was reduced by decreasing the temperature of the ionization chamber to a liquid nitrogen temperature. By converting second harmonic emission of the optical parametric oscillator with stimulated Raman scattering, spectrometric measurements in the vacuum ultraviolet region became possible.
First, we compared thermal decomposition and laser ablation methods in preparatioin of the sample for supersonic jet spectrometry. We found that the laser ablation technique provides a parent ion more efficiently and the thermal decomposition technique dimer and trimer ions. We also applied the present technique to the oil formed by thermal decomposition of polystirene foam used as packing materials, and found to contain various chemical species such as stirene, toluene, benzene, etc. When we applied a femtosecond excimer laser pulse (500 fs, 248 nm) to thermally decomposed products resulting from synthetic (e.g.stirene) and biological (e.g.adenine) polymers, we found that parent molecules were more efficiently formed in comparison with the case using a nanosecond pulse. Therefore, a short laser pulse was found to be useful in determination of a molecular weight.
In order to apply the present method to authentic samples, it is necessary to develop a method to assign chemical species from the signal peaks observed in the spectrum. We constructed a database using a wavemeter allowing the spectrometric measurements in an accuracy of 1/1000000. We also proposed a new method to assign the chemical species from the similarity of the spectra between the standard and the sample.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (25 results)

All Other

All Publications (25 results)

  • [Publications] Shinichiro Kawamura: "Development of High-Temperature Pulsed Slit Nozzle and Its Application to Supersonic Jet Absorption Spectrometry" Talanta. 41. 1933-1936 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hiroshi Noda: "Supersonic Jet Absorption Spectrometry Utilizing Xenon Flashlamp and Monochromator Equipped with Photodiode Array" Analytica Chimica Acta. 302. 335-340 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Masami Hozumi: "Supersonic Jet/Multiphoton Ionization Spectrometry of Chemical Species Resulting from Thermal Decomposition/" Proceeding of 7th International Symposium on Resonance Ionization Spectroscopy and Its/. 81-86 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Cheng-Huang Lin: "Prediction of Chemical Structure of Aromatic Hydrocarbons by Pattern Recognition of Spectral Lines Obtained by/" Talanta. 42. 1111-1119 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yoshiaki Murata: "Analysis of Photoablation Products Resulting from Polymer Materials by Supersonic Beam/Multiphotohn Ionization/" Analytical Chemistry. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 今坂藤太郎: "実用化の時代を迎えつつある超音速分子ジェット分光分析" 「化学」化学同人, 2 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Totaro Imasaka: "Laser Spectroscopy on Organic Molecules" Fresenius' Journal of Analytical Chemistry (Institut Fresenius) (in press),

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Shinichiro Kawamura: "Development of High-Temperature Pulsed Slit Nozzle and Its Application to Supersonic Jet Absorption Spectrometry" Talanta. 41. 1933-1936 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hiroshi Noda: "Supersonic Jet Absorption Spectrometry Utilizing Xenon Flashlamp and Monochromator Equipped with Photodiode Array" Analytica Chimica Acta. 302. 335-340 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Masami Hozumi: "Supersonic Jet/Multiphoton Ionization Spectrometry of Chemical Species Resulting from Thermal Decomposition and Laser Ablation of Polymers" Proceeding of 7th International Symposium on Resonance Ionization Spectroscopy and Its Application (RIS-94). 81-86 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Cheng-Huang Lin: "Prediction of Chemical Structure of Aromatic Hydrocarbons by Pattern Recognition of Spectral Lines Obtained by Fluorescene Spectrometry in a Supersonic Jet" Talanta. 42. 1111-1119 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yoshiaki Murata: "Analysis of Photoablation Products Resulting from Polymer Materials by Supersonic Beam/Multiphoton Ionization/Time-of-Flight Mass Spectrometry" Analytical Chemistry. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Totaro Imasaka: "Practical Application of Supersonic Jet Spectrometry (Japanese)" Kagaku, Kagaku Dojin. 2 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Totaro Imasaka: "Laser Spectroscopy on Organic Molecules" Fresenius' Journal of Analytical Chemistry (Institut Fresenius). (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Masami Hozumi: "Supersonic Jet/Multiphoton Ionization Spectrometry of Chemical Species Resulting from Thermal Decomposition and Laser Ablation/" Proceeding of 7th International Symposium on Resonance Ionization Sepctroscopy and Its/. 81-86 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Cheng-Huang Lin: "Prediction of Chemical Structure of Aromatic Hydrocarbons by Pattern Recognition of Spectral Lines Obtained by Fluorescence/" Talanta. 42. 1111-1119 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Yoshiaki Murata: "Analysis of Photoablation Products Resulting from Polymer Materials by Supersonic Beam/Multiphoton Ionization/Time-of-/" Analytical Chemistry. (in press).

    • Related Report
      1995 Annual Research Report
  • [Publications] 今坂藤太郎: "実用化の時代を迎えつつある超音速分子ジェット分光分析" 「化学」化学同人, 2 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Totaro Imasaka: "Laser Spectroscopy on Organic Molecules" Fresenius'Journal of Analytical Chemistry(Institut Fresenius), (in press),

    • Related Report
      1995 Annual Research Report
  • [Publications] Shinichiro Kawamura: "Development of high-temperature pulsed slit nozzle and its application to supersonic jet absorption spectrometry" Talanta. 41. 1933-1936 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Masami Hozumi: "Supersonic jet/multiphoton ionization spectrometry of chemical species resulting from thermal decomposition and laser ablation・・" Proceeding of 7th international symposium on resonance ionization spectroscopy and its application. (in press).

    • Related Report
      1994 Annual Research Report
  • [Publications] Hiroshi Noda: "Supersonic jet absorption spectrometry utilizing xenon flashlamp and monochromator equipped with photodiode array" Analytica Chimica Acta. 302. 335-340 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] Cheng H.Lin: "Prediction of chemical structure of aromatic hydrocarbons by pattern recognition of spectral lines obtained by fluorescence・・" Talanta. (in press).

    • Related Report
      1994 Annual Research Report
  • [Publications] 金田 隆: "ぶんせき(レーザー励起蛍光分析)" 日本分析化学会, 7 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] 今坂藤太郎: "化学(実用化の時間を迎えつつある超音速分子ジェット分光分析法)" 化学同人(印刷中),

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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