Nanoparticle Enhanced Laser Induced Breakdown Spectroscopy (NELIBS) as a technique for elemental analysis of microdrops at sub ppm level

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F19%3APU134266" target="_blank" >RIV/00216305:26620/19:PU134266 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Nanoparticle Enhanced Laser Induced Breakdown Spectroscopy (NELIBS) as a technique for elemental analysis of microdrops at sub ppm level

Popis výsledku v původním jazyce

Nanoparticle Enhanced Laser-Induced Breakdown Spectroscopy (NELIBS) is recently used modification of LIBS technique, where the use of nanoparticles decreases Limits Of Detection (LOD) or even in some particular cases enables the detection of minor elements not detectable with conventional LIBS. In the previous studies NELIBS applications have been presented on different kinds of samples such as metals, transparent samples, fresh samples and liquids. As it is well-known, solutions can be successfully analysed with LIBS either directly in the liquid phase, e.g. by Double Pulse (DP) techniques or by depositing and drying drops of solution on a substrate. While DP-LIBS enables analysis of solutions down to ppm levels, the method of drying several drops of solution virtually does not have any LOD limitation, as far as there is no restriction in the available amount of solution. On the contrary, if only few microliters of solution are available for the analysis, sensitivity can become a major issue in LIBS analyses. In these cases, the use of NPs can strongly improve the LIBS sensitivity. In the present work, the use of NELIBS as a tool for the elemental chemical analysis of microdrops of solutions with analyte concentration at sub-ppm level has been investigated in different liquid environment in order to check the analytical capabilities of NELIBS in aqueous, organic and biological solution. The results reveal some important characteristics of the plasmon enhanced ablation and of the emission intensity enhancement during NELIBS. In the frame of this observations, new interesting applications, such as the quantification of metals in protein systems and the elemental analysis for forensic purposes will be discussed.

Název v anglickém jazyce

Nanoparticle Enhanced Laser Induced Breakdown Spectroscopy (NELIBS) as a technique for elemental analysis of microdrops at sub ppm level

Popis výsledku anglicky

Nanoparticle Enhanced Laser-Induced Breakdown Spectroscopy (NELIBS) is recently used modification of LIBS technique, where the use of nanoparticles decreases Limits Of Detection (LOD) or even in some particular cases enables the detection of minor elements not detectable with conventional LIBS. In the previous studies NELIBS applications have been presented on different kinds of samples such as metals, transparent samples, fresh samples and liquids. As it is well-known, solutions can be successfully analysed with LIBS either directly in the liquid phase, e.g. by Double Pulse (DP) techniques or by depositing and drying drops of solution on a substrate. While DP-LIBS enables analysis of solutions down to ppm levels, the method of drying several drops of solution virtually does not have any LOD limitation, as far as there is no restriction in the available amount of solution. On the contrary, if only few microliters of solution are available for the analysis, sensitivity can become a major issue in LIBS analyses. In these cases, the use of NPs can strongly improve the LIBS sensitivity. In the present work, the use of NELIBS as a tool for the elemental chemical analysis of microdrops of solutions with analyte concentration at sub-ppm level has been investigated in different liquid environment in order to check the analytical capabilities of NELIBS in aqueous, organic and biological solution. The results reveal some important characteristics of the plasmon enhanced ablation and of the emission intensity enhancement during NELIBS. In the frame of this observations, new interesting applications, such as the quantification of metals in protein systems and the elemental analysis for forensic purposes will be discussed.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

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

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

EMSLIBS 2019 Book of abstracts

ISBN

978-80-88195-13-9

ISSN

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e-ISSN

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Počet stran výsledku

1

Strana od-do

80-80

Název nakladatele

Spektroskopická společnost Jana Marka Marci

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

8. 9. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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