Real-time Monitoring of Monochlorinated Benzene and Polychlorinated Biphenyls in the Gas Phase with On-line Detection: High Chemical Selectivity of Resonance-Enhanced Two-Photon Ionization

Dobashi, Shinsaku; Kira, Masaharu; Tanaka, Ryuichiro; Izawa, Yoshinori; Wada, Akira; Hara, Michikazu

doi:10.2116/analsci.22.603

Cited by 5 publications

(2 citation statements)

References 28 publications

(11 reference statements)

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“…[9][10][11][12][13][14][15] This method is resonanceenhanced two-photon ionization. As most organic compounds have ionization potentials between 7 and 13 eV, resonance-enhanced two-photon ionization can be achieved by using UV laser sources.…”

Section: Laser Ionizationmentioning

confidence: 99%

Safety management by use of laser mass spectrometry of polychlorinated biphenyls (PCBs) in the processed gas and work environment of a PCB disposal plant

Dobashi

Yamaguchi

Izawa

et al. 2009

J Mater Cycles Waste Manag

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This study demonstrates the applicability of laser mass spectrometry for safety management of the processed gas and the work environment in a polychlorinated biphenyl (PCB) disposal plant. By utilization of laser ionization/ ion trapping storage/time-of-fl ight mass spectrometry (LI-IT-TOFMS), we analyzed gaseous PCBs from scrap capacitors with on-line detection. It was confi rmed that few contaminants were detected in the spectrum. By the effect of laser-induced selective ionization, it was considered that there was little interference with the mass range of PCBs. The accuracy of LI-IT-TOFMS when analyzing environmental gas was almost the same as that for the PCB standard gas. It was possible to perform on-line analysis of the work environment for over 2000 h (120 000 data points). LI-IT-TOFMS was thus shown to be a very useful method for ensuring the safety of the work environment in disposal plants for PCBs. Figure 1 presents an overview of the LI-IT-TOFMS method. Mass spectrometry with laser ionization, which features molecular selectivity and fragment-free ionization over short time periods, 6-8 is a very suitable method for environmental trace analysis. The advantage of ion trap source-J Mater Cycles Waste Manag (2009) 11:148-154

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Section: Laser Ionizationmentioning

confidence: 99%

Safety management by use of laser mass spectrometry of polychlorinated biphenyls (PCBs) in the processed gas and work environment of a PCB disposal plant

Dobashi

Yamaguchi

Izawa

et al. 2009

J Mater Cycles Waste Manag

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“…Although the peak of 2,4-xylenol could be isolated from other peaks of xylenols and ethylphenols, it took more than 1 h and the peak was unfortunately broad [4]. Resonance-enhanced multiphoton ionization/time-of-flight mass spectrometry (REMPI/TOF-MS) is an excellent tool to determine closely related chemical compounds such as isomers and has been employed in the determination of aromatic hydrocarbons [5][6][7]. In addition, a supersonic jet (SSJ) technique provides a useful means for selective ionization by cooling the molecules [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Selective determination of 2,4-xylenol by gas chromatography/supersonic jet/resonance-enhanced multiphoton ionization/time-of-flight mass spectrometry

Tsukatani

Okudaira

Shitamichi

et al. 2010

Analytica Chimica Acta

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Environmental Monitoring Method of Di-, Tri-, Tetra-, Penta-, and Hexa-Chlorinated Biphenyls in the Gas Phase by Use of the Picosecond Laser Ionization

Dobashi

Yamaguchi

Izawa

et al. 2007

J. Chem. Eng. Japan

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Real-time Monitoring of Monochlorinated Benzene and Polychlorinated Biphenyls in the Gas Phase with On-line Detection: High Chemical Selectivity of Resonance-Enhanced Two-Photon Ionization

Cited by 5 publications

References 28 publications

Safety management by use of laser mass spectrometry of polychlorinated biphenyls (PCBs) in the processed gas and work environment of a PCB disposal plant

Safety management by use of laser mass spectrometry of polychlorinated biphenyls (PCBs) in the processed gas and work environment of a PCB disposal plant

Selective determination of 2,4-xylenol by gas chromatography/supersonic jet/resonance-enhanced multiphoton ionization/time-of-flight mass spectrometry

Environmental Monitoring Method of Di-, Tri-, Tetra-, Penta-, and Hexa-Chlorinated Biphenyls in the Gas Phase by Use of the Picosecond Laser Ionization

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