Influence of baseline subtraction on laser-induced breakdown spectroscopic data

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F18%3APU129239" target="_blank" >RIV/00216305:26620/18:PU129239 - isvavai.cz</a>

Result on the web

<a href="https://pubs.rsc.org/en/content/articlelanding/2018/ja/c8ja00209f#!divAbstract" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2018/ja/c8ja00209f#!divAbstract</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/C8JA00209F" target="_blank" >10.1039/C8JA00209F</a>

Result language

angličtina

Original language name

Influence of baseline subtraction on laser-induced breakdown spectroscopic data

Original language description

Spectra acquired by laser-induced breakdown spectroscopy comprise both a valuable analyte signal and an undesired background signal originating from various sources. The latter is commonly suppressed, at least partially, by gating of the signal acquisition, or treated numerically during the data processing. The numerical treatment might lead to loss of information or introduction of spectral artefacts, depending on the applied methodology. Consequently, background subtraction might significantly influence both univariate and multivariate analysis of the LIBS data. While various baseline correction methods have recently been studied and compared for multivariate LIBS analysis, their influence on LIBS data remains unexplored. Therefore, the present work aims to elucidate the effects of numerical background estimation and subtraction on LIBS data in terms of limits of detection estimated by the signal-to-noise ratio method, considering several fundamentally different background estimation algorithms: polynomial fitting, heuristic estimation, wavelet smoothing, and non-parametric modelling. A threshold gate delay value was observed above which the numerical treatment of spectral background has to be done cautiously. In addition, it was found that the optimal measurement parameters and selection of the emission line yielding the best results dependon the planned spectral processing.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

Project

<a href="/en/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Analytical Atomic Spectrometry

ISSN

0267-9477

e-ISSN

1364-5544

Volume of the periodical

33

Issue of the periodical within the volume

-

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

2107-2115

UT code for WoS article

000451536000007

EID of the result in the Scopus database

2-s2.0-85057518426