Gas aggregated Ag nanoparticles as the inorganic matrix for laser desorption/ionization mass spectrometry

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F21%3A43902984" target="_blank" >RIV/60076658:12310/21:43902984 - isvavai.cz</a>
Alternative codes found
RIV/60077344:_____/21:00541682 RIV/68378271:_____/21:00541682 RIV/00216208:11320/21:10436024 RIV/00216224:14310/21:00120868
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0169433220332268?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0169433220332268?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apsusc.2020.148469" target="_blank" >10.1016/j.apsusc.2020.148469</a>

Result language
angličtina
Original language name
Gas aggregated Ag nanoparticles as the inorganic matrix for laser desorption/ionization mass spectrometry
Original language description
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 3x10(3) NPs.mu m(-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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20506 - Coating and films

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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