Effect of the repetition rate of laser pulses on the limits of detection of the elemental composition of pollutants in aqueous solutions by femtosecond laser induced breakdown spectroscopy
Yu.S. Tolstonogova1,2, S.S. Golik1,2, A.Yu. Mayor1,2, A.A. Ilyin1,2, D.Yu. Proschenko1,3, O.A. Bukin1,3
1Far Eastern Federal University, Vladivostok, Russia
2Institute of Automation and Control Prosesses Far Easten Branch of the Russian Academy of Science, Vladivostok, Russia
3Admiral G.I. Nevelskoy Maritime State University, Vladivostok, Russia
Keywords: femtosecond libs, laser repetition rate, limit of detection, liquid analysis
Abstract
The dependence of limit of detection of Mg, Mn, Sr, Pb, Al, and B in aqueous solutions by femtosecond laser induced breakdown spectroscopy on the laser pulse repetition rate is studied. It is shown that at pulse repetition rates from 50 to 1000 Hz and under the same other experimental conditions, the best limits of detection for all elements are achieved at a laser pulse repetition rate of 166 Hz.
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