Publication detail

On the data library transfer in Laser-Induced Breakdown Spectroscopy applications

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"
}