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POŘÍZKA, P. KLUS, J. MODLITBOVÁ, P. KÉPEŠ, E. HAHN, D.W. KAISER, J.
Original Title
On the data library transfer in Laser-Induced Breakdown Spectroscopy applications
Type
abstract
Language
English
Original Abstract
Laser-Induced Breakdown Spectroscopy (LIBS) serves as an exceptional platform for a fast sample analysis. Detected laser-induced plasma (LIP) spectrum is composed of unique information (i.e. chemical fingerprint) characterizing the sample from which it originates. Multivariate Data Analysis (MVDA) algorithms are becoming an inevitable part of the spectroscopic analysis. A successful MVDA implementation is based on the well-balanced data pre-processing (outlier filtering, signal standardization, variable down-selection, etc.). This is consecutively followed by the model creation and further classification and a quantitative analysis. Nevertheless, data and related statistical models are not transferable among LIBS instruments. This is the main drawback of LIBS; in other words, it is not possible to create a model using a data from one system and classify/quantify unknown data obtained using another system. In this project, we focus on the development of a protocol that will enable data library transfer between LIBS systems. We have analyzed set of samples, pellets of sedimentary rocks, using the Sci-Trace LIBS instrument (AtomTrace, Czech Republic). The samples were analyzed under various experimental conditions and three data sets were obtained. One served as a model and the other were used to demonstrate the capabilities of data library transfer. After certain, yet simple, data processing steps, data analyzed under certain experimental conditions were correctly classified using model based on data obtained under different conditions.
Keywords
LIBS, laser, spectroscopy, data, library, transfer
Authors
POŘÍZKA, P.; KLUS, J.; MODLITBOVÁ, P.; KÉPEŠ, E.; HAHN, D.W.; KAISER, J.
Released
17. 4. 2018
BibTex
@misc{BUT153382, author="POŘÍZKA, P. and KLUS, J. and MODLITBOVÁ, P. and KÉPEŠ, E. and HAHN, D.W. and KAISER, J.", title="On the data library transfer in Laser-Induced Breakdown Spectroscopy applications", year="2018", note="abstract" }