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@inproceedings{619224,
author = {Novotný, Karel and Staňková, Alice and Otruba, Vítězslav and Kanický, Viktor},
address = {Pardubice},
booktitle = {International Conference on Inorganic Environmental Analysis - Proceedings of the 4th Conference},
keywords = {Laser ablation; LIBS;Time resolved emission spectrometry; Soil},
language = {eng},
location = {Pardubice},
pages = {85-87},
publisher = {Spektroskopická společnost J.M.Marci, Univerzita Pardubice},
title = {LIBS in Environmental Analysis},
year = {2005}
}
TY - JOUR
ID - 619224
AU - Novotný, Karel - Staňková, Alice - Otruba, Vítězslav - Kanický, Viktor
PY - 2005
TI - LIBS in Environmental Analysis
PB - Spektroskopická společnost J.M.Marci, Univerzita Pardubice
CY - Pardubice
KW - Laser ablation
KW - LIBS;Time resolved emission spectrometry
KW - Soil
N2 - Laser induced breakdown spectrometry (LIBS) plays nowadays important role in environmental chemistry. Recently, LIBS has been applied to many kinds of samples such as liquid samples, direct analysis of solid samples and depth profiling of layered materials. LIBS has various advantages over more conventional methods of atomic emission spectroscopy. The most relevant characteristics are direct analysis of solid samples, no sample preparation, a small sample requirement, the possibility of on-line analysis, localized microanalysis, a single step of vaporization and excitation and simultaneous multielement analysis. In the present work, LIBS has been applied to the determination of heavy metals in soil samples. Samples were presented for the analysis as pressed pellets prepared by mixing with powdered silver binder or poured pellets with epoxide resin binder. Q-switched Nd:YAG laser with the wavelength of 1064 nm and repetition rate of 10 Hz was used for ablation of prepared pellets. Sample was attached to a holder, which was a part of a laboratory-made ablation chamber. This holder was mounted on a computer controlled xy translation stages. Emission of breakdown plasma from chamber was collected by a fiber optic system and delivered onto an entrance slit of the TRIAX 320 monochromator. The monochromator was equipped with a photomultiplier Hamamatsu R928 gated by a laboratory-built control unit. Time resolved signal was recorded by the digital storage oscilloscope TDS1012. The time dependences of LIBS signals were obtained and the dependences of signal on element concentration were constructed.
ER -
NOVOTNÝ, Karel, Alice STAŇKOVÁ, Vítězslav OTRUBA a Viktor KANICKÝ. LIBS in Environmental Analysis. In \textit{International Conference on Inorganic Environmental Analysis - Proceedings of the 4th Conference}. Pardubice: Spektroskopická společnost J.M.Marci, Univerzita Pardubice, 2005, s.~85-87.
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