Abstract − Analytical Sciences, 25(5), 599 (2009).
Selective Ionization of 2,4-Xylenol in Mass Spectrometry Using a Tunable Laser and Supersonic Jet Technique
Hiroko TSUKATANI,*1,*2 Hiroki OKUDAIRA,*2 Tomohiro UCHIMURA,*2,*3 Tomoko IMASAKA,*4 and Totaro IMASAKA*2,*3
*1 Fukuoka Institute of Health and Environmental Sciences, 39 Mukaizano, Dazaifu, Fukuoka 818-0135, Japan
*2 Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi, Fukuoka 819-0395, Japan
*3 Division of Translational Research, Center for Future Chemistry, 744 Motooka, Nishi, Fukuoka 819-0395, Japan
*4 Laboratory of Chemistry, Graduate School of Design, Kyushu University, 4-9-1 Shiobaru, Minami, Fukuoka 815-8540, Japan
*2 Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi, Fukuoka 819-0395, Japan
*3 Division of Translational Research, Center for Future Chemistry, 744 Motooka, Nishi, Fukuoka 819-0395, Japan
*4 Laboratory of Chemistry, Graduate School of Design, Kyushu University, 4-9-1 Shiobaru, Minami, Fukuoka 815-8540, Japan
A supersonic jet/resonance-enhanced multiphoton ionization/time-of-flight mass spectrum (SSJ/REMPI/TOF-MS) was measured for xylenols and ethylphenols. Sharp and intense peaks were observed in the REMPI spectrum of 2,4-xylenol, and the wavelength of the peak tentatively assigned to the 0-0 transition was the longest among xylenols and ethylphenols. These results suggest that 2,4-xylenol, designated as a Class II chemical substance in the Pollutant Release and Transfer Register (PRTR), can be measured sensitively and selectively even when numerous isomers are present in the sample.
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