Detection of tire tread particles using laser-induced breakdown spectroscopy

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Publikace nespadá pod Ekonomicko-správní fakultu, ale pod Středoevropský technologický institut. Oficiální stránka publikace je na webu muni.cz.
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PROCHAZKA David BILÍK Martin PROCHAZKOVÁ Petra KLUS Jakub POŘÍZKA Pavel NOVOTNÝ Jan NOVOTNÝ Karel TICOVÁ Barbora BRADÁČ Albert SEMELA Marek KAISER Jozef

Rok publikování 2015
Druh Článek v odborném periodiku
Časopis / Zdroj Spectrochimica Acta B
Fakulta / Pracoviště MU

Středoevropský technologický institut

Citace
www http://www.sciencedirect.com/science/article/pii/S0584854715000853
Doi http://dx.doi.org/10.1016/j.sab.2015.03.011
Obor Fyzika plazmatu a výboje v plynech
Klíčová slova LIBS; Tire tread; Optimization
Popis The objective of this paper is a study of the potential of laser induced breakdown spectroscopy (LIBS) for detection of tire tread particles. Tire tread particles may represent pollutants; simultaneously, it is potentially possible to exploit detection of tire tread particles for identification of optically imperceptible braking tracks at locations of road accidents. The paper describes the general composition of tire treads and selection of an element suitable for detection using the LIBS method. Subsequently, the applicable spectral line is selected considering interferences with lines of elements that might be present together with the detected particles, and optimization of measurement parameters such as incident laser energy, gate delay and gate width is performed. In order to eliminate the matrix effect, measurements were performed using 4 types of tires manufactured by 3 different producers. An adhesive tape was used as a sample carrier. The most suitable adhesive tape was selected from 5 commonly available tapes, on the basis of their respective LIBS spectra. Calibration standards, i.e. an adhesive tape with different area content of tire tread particles, were prepared for the selected tire. A calibration line was created on the basis of the aforementioned calibration standards. The linear section of this line was used for determination of the detection limit value applicable to the selected tire. Considering the insignificant influence of matrix of various types of tires, it is possible to make a simple recalculation of the detection limit value on the basis of zinc content in a specific tire.
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