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@proceedings{1374970,
author = {Brada, Michal and Prochazka, David and Pořízka, Pavel and Novotný, Jan and Novotný, Karel and Kaiser, Jozef},
booktitle = {9-th International Conference on Laser-Induced Breakdown Spectroscopy LIBS},
keywords = {Laser-Induced Breakdown Spectroscopy; analysis of suspensions; liquid jet},
language = {eng},
title = {Comparison of approaches for Laser-Induced Breakdown Spectroscopy analyses of liquid suspensions},
year = {2016}
}
TY - CONF
ID - 1374970
AU - Brada, Michal - Prochazka, David - Pořízka, Pavel - Novotný, Jan - Novotný, Karel - Kaiser, Jozef
PY - 2016
TI - Comparison of approaches for Laser-Induced Breakdown Spectroscopy analyses of liquid suspensions
KW - Laser-Induced Breakdown Spectroscopy
KW - analysis of suspensions
KW - liquid jet
N2 - Here we present complex comparison of several approaches suggested for further in-situ LIBS analysis of liquid suspensions. The in-situ LIBS analysis of suspensions is still a challenging task due to complications related to poor shot-to-shot repeatability when compared to the LIBS analysis of solids. This is attributed mainly to laser-matter coupling and instability of analyzed liquid surface position, and partially to sample inhomogeneity. There are several approaches conventionally used for direct analyses of suspensions such as the analysis of static liquid bulk, liquid jet, droplets, or aerosols. These approaches enable direct analysis applicable to e.g. online monitoring of industrial processes, analysis of contaminated waters etc., but they suffer mainly from high fluctuations in detected signal and moderate limits of detection. Additionally, indirect way of suspensions analysis can be done after drying and/or deposition on a filter. In this study the optimization of most feasible methodological approach was based on following significant parameters: volume of suspension needed for the analysis, limits of detection (in respect to selected toxic and heavy metals), repeatability of shot-to-shot analysis (relative standard deviation), sample preparation time, and total time of analysis.
ER -
BRADA, Michal, David PROCHAZKA, Pavel POŘÍZKA, Jan NOVOTNÝ, Karel NOVOTNÝ a Jozef KAISER. Comparison of approaches for Laser-Induced Breakdown Spectroscopy analyses of liquid suspensions. In \textit{9-th International Conference on Laser-Induced Breakdown Spectroscopy LIBS}. 2016.
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