Abstract
Pulsed vacuum ultraviolet (VUV) radiation (80–180 nm) emitted by laser plasma produced on a metal target is used in mass spectrometry to ionize volatile organic compounds at atmospheric pressure. The parameters of light emitted by the laser plasma generated by a pulsed Nd:YAG laser radiation at a wavelength of 1064 nm, power density of about 70 GW/cm2, and pulse energy of 250 µJ have been determined using emission spectroscopy. During the first several nanoseconds, the plasma emission spectrum does not contain any pronounced spectral lines and can be described as the emission spectrum of a blackbody with a temperature of 5.5 × 104–105 K (the temperature depends on the ambient gas pressure). This radiation provides ionization of water, oxygen, and nitrogen molecules, as well as argon atoms. It is shown that the mechanisms of ionization of organic compounds under VUV irradiation in argon are based on the reaction of proton transfer from ionized water molecules and reactions of organic compounds with oxygen ions.
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REFERENCES
A. Wieser, L. Schneider, J. Jung, and S. Schubert, “MALDI-TOF MS in microbiological diagnostics – identification of microorganisms and beyond (mini review),” Appl. Microbiol. Biotechnol. 93 (3), 965–974 (2012). https://doi.org/10.1007/s00253-011-3783-4
Y. Y. Broza, P. Mochalski, V. Ruzsanyi, A. Amann, and H. Haick, “Hybrid volatolomics and disease detection,” Angew. Chem. Int. Ed. 54 (38), 11036–11048 (2015). https://doi.org/10.1002/anie.201500153
A. Amann, B. de Lacy Costello, W. Miekisch, J. Schubert, B. Buszewski, J. Pleil, N. Ratcliffe, and T. Risby, “The human volatilome: Volatile organic compounds (VOCs) in exhaled breath, skin emanations, urine, feces and saliva,” J. Breath Res. 8 (3), 034001 (2014). https://doi.org/10.1088/1752-7155/8/3/034001
A. V. Pento, S. M. Nikiforov, Ya. O. Simanovsky, A. A. Grechnikov, and S. S. Alimpiev, “Laser ablation and ionisation by laser plasma radiation in the atmospheric-pressure mass spectrometry of organic compounds,” Quantum Electron. 43 (1), 55–59 (2013). https://doi.org/10.1070/QE2013v043n01ABEH015065
Troitsk Research and Development Center, “XWS-65 Broadband Plasma Radiation Source”. http://trdc.com/ ?page_id=469 (Accessed November 2, 2020).
V. A. Labusov, S. S. Boldova, D. O. Selunin, Z. V. Semenov, P. V. Vashchenko, and S. A. Babin, “High-resolution continuum-source electrothermal atomic absorption spectrometer for simultaneous multi-element determination in the spectral range of 190–780 nm,” J. Anal. At. Spectrom. 34 (5), 1005–1010 (2019). https://doi.org/10.1039/C8JA00432
A. Borgheseand and S. S. Merola, “Time-resolved spectral and spatial description of laser-induced breakdown in air as a pulsed, bright, and broadband ultraviolet–visible light source,” Appl. Opt. 37 (18), 3977–3983 (1998). https://doi.org/10.1364/AO.37.003977
H. C. Liu, X. L. Mao, J. H. Yoo, and R. E. Russo, “Early phase laser induced plasma diagnostics and mass removal during single-pulse laser ablation of silicon,” Spectrochim. Acta, Part B. 54 (11), 1607–1624 (1999). https://doi.org/10.1016/S0584-8547(99)00092-0
N. Farid, S. S. Harilal, H. Ding, and A. Hassanein, “Emission features and expansion dynamics of nanosecond laser ablation plumes at different ambient pressures,” J. Appl. Phys. 115 (3), 033107 (2014). https://doi.org/10.1063/1.4862167
S. S. Alimpiev, A. A. Grechnikov, and S. M. Nikiforov, “New approaches to the laser mass spectrometry of organic samples,” Phys.-Usp. 58 (2), 191–195 (2015). https://doi.org/10.3367/UFNe.0185.201502f.0207
A. Bierstedt and J. Riedel, “Airborne laser-spark for ambient desorption/ionization,” Eur. J. Mass Spectrom. 22 (3), 105–114 (2016). https://doi.org/10.1255/ejms.1417
A. Bierstedt, H. Kersten, R. Glaus, I. Gornushkin, U. Panne, and J. Riedel, “Characterization of an airborne laser-spark ion source for ambient mass spectrometry,” Anal. Chem. 89 (6), 3437–3444 (2017). https://doi.org/10.1021/acs.analchem.6b04178
V. S. Vorob’ev, “Plasma arising during the interaction of laser radiation with solids,” Phys.-Usp. 36 (12), 1129–1157 (1993). https://doi.org/10.1070/PU1993v036n12ABEH002209
D. W. Hahn and N. Omenetto, “Laser-induced breakdown spectroscopy (LIBS), part I: Review of basic diagnostics and plasma–particle interactions: Still-challenging issues within the analytical plasma community,” Appl. Spectrosc. 64 (12), 335A–336A (2010). https://doi.org/10.1366/000370210793561691
D. W. Hahn and N. Omenetto, “Laser-induced breakdown spectroscopy (LIBS), part II: Review of instrumental and methodological approaches to material analysis and applications to different fields,” Appl. Spectrosc. 66 (4), 347–349 (2012). https://doi.org/10.1366/11-06574
M. Cirisan, J. M. Jouvard, L. Lavisse, L. Hallo, and R. Oltra, “Laser plasma plume structure and dynamics in the ambient air: The early stage of expansion,” J. Appl. Phys. 109 (10), 103301 (2011). https://doi.org/10.1063/1.3581076
X. Li, W. Wei, J. Wu, S. Jia, and A. Qiu, “The influence of spot size on the expansion dynamics of nanosecond-laser-produced copper plasmas in atmosphere,” J. Appl. Phys. 113 (24), 243304 (2013). https://doi.org/10.1063/1.4812580
C. Aragón and J. A. Aguilera, “Characterization of laser induced plasmas by optical emission spectroscopy: A review of experiments and methods,” Spectrochim. Acta, Part B. 63 (9), 893–916 (2008). https://doi.org/10.1016/j.sab.2008.05.010
M. Sabsabi and P. Cielo, “Quantitative analysis of aluminum alloys by laser-induced breakdown spectroscopy and plasma characterization,” Appl. Spectrosc. 49 (4), 499–507 (1995). https://doi.org/10.1366/0003702953964408
L. J. Radziemski, “From LASER to LIBS, the path of technology development,” Spectrochim. Acta, Part B. 57 (7), 1109–1113 (2002). https://doi.org/10.1016/S0584-8547(02)00052-6
M. Baudelet and B. W. Smith, “The first years of laser-induced breakdown spectroscopy,” J. Anal. At. Spectrom. 28 (5), 624–629 (2013). https://doi.org/10.1039/C3JA50027F
R. Noll, Laser-Induced Breakdown Spectroscopy (Springer, Berlin–Heidelberg, 2012). https://doi.org/10.1007/978-3-642-20668-9
A. De Giacomo, R. Gaudiuso, M. Dell’Aglio, and A. Santagata, “The role of continuum radiation in laser induced plasma spectroscopy,” Spectrochim. Acta, Part B. 65 (5), 385–394 (2010). https://doi.org/10.1016/j.sab.2010.03.016
S. Zhang, X. Wang, M. He, Y. Jiang, B. Zhang, W. Hang, and B. Huang, “Laser-induced plasma temperature,” Spectrochim. Acta, Part B. 97, 13–33 (2014). https://doi.org/10.1016/0020-7381(76)80133-7
A. Kramida, Yu. Ralchenko, J. Reader, and NIST ASD Team, NIST Atomic Spectra Database (ver. 5.7.1). https://doi.org/10.18434/T4W30F. https://physics. nist.gov/asd (Accessed October 13, 2020).
E. P. L. Hunter and S. G. Lias, “Evaluated gas phase basicities and proton affinities of molecules: An update,” J. Phys. Chem. Ref. Data. 27 (3), 413–656 (1998). https://doi.org/10.1063/1.556018
N. G. Adams and D. Smith, “The selected ion flow tube (SIFT); A technique for studying ion-neutral reactions,” Int. J. Mass Spectrom. Ion Phys. 21 (3-4), 349–359 (1976). https://doi.org/10.1016/0020-7381(76)80133-7
W. Lindinger, A. Hansel, and A. Jordan, “On-line monitoring of volatile organic compounds at pptv levels by means of proton-transfer-reaction mass spectrometry (PTR-MS) medical applications, food control and environmental research,” Int. J. Mass Spectrom. Ion Processes. 173 (3), 191–241 (1998). https://doi.org/10.1016/S0168-1176(97)00281-4
T. Wróblewski, L. Ziemczonek, K. Szerement, and G. P. Karwasz, “Proton affinities of simple organic compounds,” Czech. J. Phys. 56 (2), B1110–B1115 (2006). https://doi.org/10.1007/s10582-006-0335-8
M. T. Fernandez, C. Williams, R. S. Mason, and B. J. C. Cabral, “Experimental and theoretical proton affinity of limonene,” J. Chem. Soc., Faraday Trans. 94 (10), 1427–1430 (1998). https://doi.org/10.1039/A800049B
F. Gunzer, “Mercury-induced fragmentation of n-decane and n-undecane in positive mode ion mobility spectrometry,” Analyst. 140 (18), 6379–6385 (2015). https://doi.org/10.1039/C5AN00876J
Q. Ma, V. Motto-Ros, X. Bai, and J. Yu, “Experimental investigation of the structure and the dynamics of nanosecond laser-induced plasma in 1-atm argon ambient gas,” Appl. Phys. Lett. 103 (20), 204101 (2013). https://doi.org/10.1063/1.4829628
S. Amoruso, J. Schou, and J. G. Lunney, “Influence of the atomic mass of the background gas on laser ablation plume propagation,” Appl. Phys. A. 92 (4), 907–911 (2008). https://doi.org/10.1007/s00339-008-4591-2
S. Amoruso, J. Schou, and J. G. Lunney, “Multiple-scattering effects in laser ablation plume propagation in gases,” Europhys. Lett. 76 (3), 436–442 (2006). https://doi.org/10.1209/epl/i2006-10296-0
V. V. Filatov, S. M. Nikiforov, V. V. Zelenov, A. V. Pento, A. B. Bukharina, I. V. Sulimenkov, V. S. Brusov, J. Yu, and V. I. Kozlovskiy, “Ionization of organic molecules with metal ions formed in the laser plasma,” J. Mass. Spectrom. 56 (5), e4723 (2021). https://doi.org/10.1002/jms.4723
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Fabelinsky, V.I., Bukharina, A.B., Pento, A.V. et al. Laser Plasma on Metal Target Surface as a Source of Vacuum UV Radiation for Ionizing Organic Molecules in Mass Spectroscopy. Phys. Wave Phen. 29, 210–220 (2021). https://doi.org/10.3103/S1541308X21030043
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DOI: https://doi.org/10.3103/S1541308X21030043