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@article{1710138,
author = {Kratochvíl, Jiří and Prysiazhnyi, Vadym and Dyčka, Filip and Kylián, Ondřej and Kúš, Peter and Sezemský, Petr and Štěrba, Ján and Straňák, Vítězslav},
article_location = {Amsterdam},
article_number = {March 2021},
doi = {http://dx.doi.org/10.1016/j.apsusc.2020.148469},
keywords = {Gas aggregation source; Laser desorption/ionization time-of-flight mass spectrometry; Nanoparticles},
language = {eng},
issn = {0169-4332},
journal = {Applied Surface Science},
title = {Gas aggregated Ag nanoparticles as the inorganic matrix for laser desorption/ionization mass spectrometry},
url = {https://www.sciencedirect.com/science/article/pii/S0169433220332268},
volume = {541},
year = {2021}
}
TY - JOUR
ID - 1710138
AU - Kratochvíl, Jiří - Prysiazhnyi, Vadym - Dyčka, Filip - Kylián, Ondřej - Kúš, Peter - Sezemský, Petr - Štěrba, Ján - Straňák, Vítězslav
PY - 2021
TI - Gas aggregated Ag nanoparticles as the inorganic matrix for laser desorption/ionization mass spectrometry
JF - Applied Surface Science
VL - 541
IS - March 2021
SP - 1-8
EP - 1-8
PB - Elsevier Science
SN - 01694332
KW - Gas aggregation source
KW - Laser desorption/ionization time-of-flight mass spectrometry
KW - Nanoparticles
UR - https://www.sciencedirect.com/science/article/pii/S0169433220332268
L2 - https://www.sciencedirect.com/science/article/pii/S0169433220332268
N2 - We report here on a nanoparticle-assisted laser desorption/ionization time-of-flight mass spectrometry (NP-LDI-TOF MS) for the detection of small molecules. This technique is based on the overcoating of a dried analyte by an array of silver nanoparticles produced by gas aggregation source. This allows for the spatially homogeneous distribution of nanoparticles over the analyte that may fully substitute a conventional organic matrix routinely used for the matrix-assisted laser desorption/ionization mass spectrometry and thus limit the possible interference of matrix with the low-mass molecules. Furthermore, it is shown that the intensity of the detected signal strongly correlates with the number of deposited Ag nanoparticles. At its optimum, that was found to correspond to the nanoparticle surface density of 3x103 NPs*µm-2, the detection limit was 3x10-8 g*L-1 for riboflavin. Such a high detection limit, together with good reproducibility, excellent signal stability, and imaging capability, makes this technique a valuable alternative to other laser desorption/ionization-based detection methods.
ER -
KRATOCHVÍL, Jiří, Vadym PRYSIAZHNYI, Filip DYČKA, Ondřej KYLIÁN, Peter KÚŠ, Petr SEZEMSKÝ, Ján ŠTĚRBA a Vítězslav STRAŇÁK. Gas aggregated Ag nanoparticles as the inorganic matrix for laser desorption/ionization mass spectrometry. \textit{Applied Surface Science}. Amsterdam: Elsevier Science, 2021, roč.~541, March 2021, s.~1-8. ISSN~0169-4332. Dostupné z: https://dx.doi.org/10.1016/j.apsusc.2020.148469.
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