Detailed Information on Publication Record
2017
Laser-Induced Breakdown Spectroscopy for depth-profile analysis of historical painting model samples
POSPÍŠILOVÁ, Eva, Karel NOVOTNÝ, Jozef KAISER, Pavel POŘÍZKA, Richard ŠEVČÍK et. al.Basic information
Original name
Laser-Induced Breakdown Spectroscopy for depth-profile analysis of historical painting model samples
Authors
POSPÍŠILOVÁ, Eva (203 Czech Republic, belonging to the institution), Karel NOVOTNÝ (203 Czech Republic, guarantor, belonging to the institution), Jozef KAISER (203 Czech Republic), Pavel POŘÍZKA (203 Czech Republic), Richard ŠEVČÍK (203 Czech Republic, belonging to the institution), David HRADIL (203 Czech Republic) and Janka HRADILOVÁ (203 Czech Republic)
Edition
CSI XL - IX EMSLIBS, 2017
Other information
Language
English
Type of outcome
Konferenční abstrakt
Field of Study
10406 Analytical chemistry
Country of publisher
Italy
Confidentiality degree
není předmětem státního či obchodního tajemství
RIV identification code
RIV/00216224:14310/17:00099873
Organization unit
Faculty of Science
Keywords in English
Historical painting model samples; LIBS
Tags
International impact
Změněno: 13/3/2018 10:33, RNDr. Richard Ševčík, Ph.D.
Abstract
V originále
Model multilayered painting samples containing traditional pigments were prepared on a wooden support (5 x 10 cm) with each layer partly revealed. Typical model sample consisted of three to four layers, with first, so called ground layer, containing clay or chalk in organic binder, second organic layer, and the third or in some cases fourth layer containing inorganic pigments (e.g. Azurite or Prussian Blue) in organic binder or organic dyes (e.g. Carmine Lake) with inorganic medium in organic binder. Thirty laser pulses were applied to one point and individual spectra were obtained for each shot. Broadband spectra were first acquired using Sci-Trace instrument (AtomTrace, Czech Republic) equipped with echelle spectrometer and EMCCD camera. Significant element lines were chosen and samples were re-measured using modified ablation system New Wave UP-266 MACRO equipped with Czerny Turner monochromator and an ICCD detector. Spectra obtained using both LIBS systems were processed to create the depth profiles of the samples. Particular element lines representing each layer (e.g. Cu I 324.7 nm for Azurite) were chosen. Acoustic and total emission signal was used for elimination of drift caused by the strong shot-to-shot LIBS signal variations and changes in physical–chemical properties of different layers. For comparison purposes elemental analysis by hand-held X-ray fluorescence spectrometer Innov-X DELTA Premium was used. The advantages and limitations of LIBS and hand-held XRF are discussed.
Links
ED1.1.00/02.0068, research and development project |
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