| HOLÁ, Markéta, Zita SALAJKOVÁ, Aleš HRDLIČKA, Pavel POŘÍZKA, Karel NOVOTNÝ, Ladislav ČELKO, Petr ŠPERKA, David PROCHAZKA, Jan NOVOTNÝ, Pavlína MODLITBOVÁ, Viktor KANICKÝ a Jozef KAISER. Feasibility of Nanoparticle-Enhanced Laser Ablation Inductively Coupled Plasma Mass Spectrometry. Analytical Chemistry. WASHINGTON: AMER CHEMICAL SOC, 2018, roč. 90, č. 20, s. 11820-11826. ISSN 0003-2700. Dostupné z: https://dx.doi.org/10.1021/acs.analchern.8b01197. |
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@article{1492940,
author = {Holá, Markéta and Salajková, Zita and Hrdlička, Aleš and Pořízka, Pavel and Novotný, Karel and Čelko, Ladislav and Šperka, Petr and Prochazka, David and Novotný, Jan and Modlitbová, Pavlína and Kanický, Viktor and Kaiser, Jozef},
article_location = {WASHINGTON},
article_number = {20},
doi = {http://dx.doi.org/10.1021/acs.analchern.8b01197},
keywords = {Laser; ablation; inductively coupled plasma; mass; spectrometry; nanoparticle; enhancement},
language = {eng},
issn = {0003-2700},
journal = {Analytical Chemistry},
title = {Feasibility of Nanoparticle-Enhanced Laser Ablation Inductively Coupled Plasma Mass Spectrometry},
url = {https://pubs.acs.org/doi/10.1021/acs.analchem.8b01197},
volume = {90},
year = {2018}
}
TY - JOUR
ID - 1492940
AU - Holá, Markéta - Salajková, Zita - Hrdlička, Aleš - Pořízka, Pavel - Novotný, Karel - Čelko, Ladislav - Šperka, Petr - Prochazka, David - Novotný, Jan - Modlitbová, Pavlína - Kanický, Viktor - Kaiser, Jozef
PY - 2018
TI - Feasibility of Nanoparticle-Enhanced Laser Ablation Inductively Coupled Plasma Mass Spectrometry
JF - Analytical Chemistry
VL - 90
IS - 20
SP - 11820-11826
EP - 11820-11826
PB - AMER CHEMICAL SOC
SN - 00032700
KW - Laser
KW - ablation
KW - inductively coupled plasma
KW - mass
KW - spectrometry
KW - nanoparticle
KW - enhancement
UR - https://pubs.acs.org/doi/10.1021/acs.analchem.8b01197
N2 - Nanoparticles (NPs) applied to the surface of some solids can increase signals in inductively coupled plasma mass spectrometry (ICPMS). Drops containing 20 and/or 40 nm nanoparticles of Ag and/or Au were deposited on metallic and ceramic/glass samples, and after being dried, both the samples treated with NPs and plain targets were ablated by one pulse per spot. The laser ablation ICPMS (LA-ICPMS) signals were enhanced for metallic samples modified with NPs in comparison to signals produced at the plain, untreated surface. Maps of LA-ICPMS signals recorded for several laser fluences show that the NP-induced signal enhancement exceeds even 2 orders of magnitude for metallic samples. No enhancement was achieved for nonconductive samples. This enhancement is limited to the peripheral annular region of the dried droplet area where NPs are concentrated due to the "coffee stain" effect. Ablation crater profilometric inspection revealed a more uniform material rearrangement over the NP-treated surface compared with the ablated plain target. However, besides a smoother crater bottom, no other evidence of an NP-enhancing effect was noticed, although an increased ablation rate was anticipated. Limits of detection dropped by 1 order of magnitude for the minor elements in the presence of NPs. Observed phenomena depend only on the NP surface concentration but not on the material or size of the NPs. An electron microprobe study of the collected ablation aerosol has shown that aerosol particles consisting of target material are aggregated around the NPs. The hypothesis is that such aggregates exhibit better transport/vaporization efficiency, thus enhancing signals for metallic samples. A detailed study of the suggested mechanism will be continued in ongoing work.
ER -
HOLÁ, Markéta, Zita SALAJKOVÁ, Aleš HRDLIČKA, Pavel POŘÍZKA, Karel NOVOTNÝ, Ladislav ČELKO, Petr ŠPERKA, David PROCHAZKA, Jan NOVOTNÝ, Pavlína MODLITBOVÁ, Viktor KANICKÝ a Jozef KAISER. Feasibility of Nanoparticle-Enhanced Laser Ablation Inductively Coupled Plasma Mass Spectrometry. \textit{Analytical Chemistry}. WASHINGTON: AMER CHEMICAL SOC, 2018, roč.~90, č.~20, s.~11820-11826. ISSN~0003-2700. Dostupné z: https://dx.doi.org/10.1021/acs.analchern.8b01197.
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