Laser-induced breakdown spectroscopy analysis with multi-pulse excitation for ablation process of tuna areolas
DOI:
https://doi.org/10.21640/ns.v2i4.208Keywords:
opuntia, plasma, láser, LIBS, laser ablation technique, nopal, Opuntia ficus-indicaAbstract
Introduction: The Laser-Induced Breakdown Spectroscopy technique (LIBS), has important advantages over other analytical techniques. For example, the sample requires no preparation may be in solid, liquid, or gas phase and have any shape and size, it requires a minimal amount of material and finally, the analysis is performed in real time. These advantages make possible realtime tracking of a laser ablation process, even for samples of complex composition. For monitoring an industrial process, this tool would be most appropriate if you have a calibration of equipment and a particular defined protocol. In this work, we show the results for LIBS analysis performed for the case of laser ablation of Tuna areolas (fruit of the Opuntia ficus-indica).
Method: The LIBS analysis of tuna samples takes place, both in the areola and in the cortex. For the plasma excitation we uses a Nd: YAG laser with special Q:Switch scheme: The pulse train emission regime. In order to guarantee the lines recognition in the LIBS spectra, before experiments widh samples, we takes the spectrum of well known composition standarts, establishing a protocol for the interpretation of spectra.
Results: A clear reading for the H line located at 656.2 nm was obtained. A simple protocol was established for the spectra interpretation, which allowed the identification of 49 characteristic peaks. Finally, the composition to the cortex and the areola were determined and carried out a qualitative comparison between them.
Discussion or Conclusion: The results shows that the laser excitation in pulse train form, understood as a particular form of Q: Switch regime, provides an intense plasma emission and efficient elements determination, with adequate signal to noise ratio. Moreover, it is possible to identify compositional differences between crust and areola, which can permits to track the laser ablation of areolas process in a simple way
Downloads
References
Aguilera, J. A., C. Aragón, V. Madurga & J. Manrique (2009) Study of matrix effects in laser induced breakdown spectroscopy on metallic samples using plasma characterization by emission spectroscopy. Spectrochimica Acta Part B: Atomic Spectroscopy, 64, 993-998.
Alfier, A., S. Barison, T. Danieli, L. Giudicotti, C. Pagura & R. Pasqualotto (2008) In situ window cleaning by laser blowoff through optical fiber. Review of Scientific Instruments, 79.
Aragón, C. & J. A. Aguilera (2008) Characterization of laser induced plasmas by optical emission spectroscopy: A review of experiments and methods. Spectrochimica Acta Part B: Atomic Spectroscopy, 63, 893-916.
Babushok, V. I., F. C. DeLucia Jr, J. L. Gottfried, C. A. Munson & A. W. Miziolek (2006) Double pulse laser ablation and plasma: Laser induced breakdown spectroscopy signal enhancement. Spectrochimica Acta - Part B Atomic Spectroscopy, 61, 999-1014.
Carceres, J. O., J. Tornero Lopez, H. H. Telle & A. Gonzalez Ureña (2001) Quantitative analysis of trace metal ions in ice using laser-induced breakdown spectroscopy. Spectrochimica Acta - Part B Atomic Spectroscopy, 56, 831-838.
Cremers, D. A. & L. J. Radziemski. 2006. Basics of the LIBS Plasma. In Laser-Induced Breakdown Spectroscopy (LIBS): Fundamentals and Applications, ed. C. U. Press, 23-50. New York: John Wiley & Sons, Ltd.
Fantoni, R., L. Caneve, F. Colao, L. Fornarini, V. Lazic & V. Spizzichino (2008) Methodologies for laboratory Laser Induced Breakdown Spectroscopy semi-quantitative and quantitative analysis--A review. Spectrochimica Acta Part B: Atomic Spectroscopy, 63, 1097-1108.
Flores, T., L. Ponce, M. Arronte & E. de Posada (2009) Free-running and Q:Switched LIBS measurements during the laser ablation of Prickle Pears spines. Optics and Lasers in Engineering, 47, 578-583.
Inglese, P., G. Barbera & T. La Mantia (1995) Research strategies for the improvement of cactuspear (Opuntia ficus-indica) fruit quality and production. Journal of Arid Environments, 29, 455-468.
Lewenstein M., Y. L., Cooper J. , Burnett S.K. (1994) Quantum Field Theory of Atoms Interacting with Photons I Foundations. Phys. Rev. A., 50, 2207
Lie, T. J., K. H. Kurniawan, D. P. Kurniawan, M. Pardede, M. M. Suliyanti, A. Khumaeni, S. A. Natiq, S. N. Abdulmadjid, Y. I. Lee, K. Kagawa, N. Idris & M. O. Tjia (2006) Elemental analysis of bead samples using a laser-induced plasma at low pressure. Spectrochimica Acta Part B: Atomic Spectroscopy, 61, 104-112.
Pasquini, C., J. Cortez, L. M. C. Silva & F. B. Gonzaga (2007) Laser induced breakdown spectroscopy. Journal of the Brazilian Chemical Society, 18, 463-512.
Ponce, L., T. Flores, A. Arronte & A. Flores. 2008a. Plasma emission spectra of opuntia Nopalea obtained with microsecond laser pulses. In AIP Conference Proceedings, 1268-1273.
Ponce, L., T. Flores, M. Arronte, V. A. Parfenov, L. V. Koval'chuk & L. Bartoli (2008b) Laser processing of cactuses of the Opuntia family. Journal of Optical Technology (A Translation of Opticheskii Zhurnal), 75, 490-494.
Radziemski, L. J. (2002) From LASER to LIBS, the path of technology development. Spectrochimica Acta - Part B Atomic Spectroscopy, 57, 1109-1113.
Vergas-Belmin, V., G. Wiedemann, L. Weber, M. Cooper, D. Crump & R. Gouerne (2003) A review of health hazards linked to the use of lasers for stone cleaning. Journal of Cultural Heritage, 4.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2015 Nova Scientia
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Conditions for the freedom of publication: the journal, due to its scientific nature, must not have political or institutional undertones to groups that are foreign to the original objective of the same, or its mission, so that there is no censorship derived from the rigorous ruling process.
Due to this, the contents of the articles will be the responsibility of the authors, and once published, the considerations made to the same will be sent to the authors so that they resolve any possible controversies regarding their work.
The complete or partial reproduction of the work is authorized as long as the source is cited.
