Publication details

Studium transportní účinnosti SALD SP ICP MS nanočástic

Title in English Study of nanoparticles transport efficiency by SALD SP ICP MS
Authors

STIBOREK Marek MELIORISOVÁ Stanislava FARKA Zdeněk MICKERT Matthias Jürgen KRÁSENSKÝ Pavel KROUPA Jiří HLAVÁČEK Antonín SKLÁDAL Petr GORRIS Hans-Heiner KANICKÝ Viktor PREISLER Jan

Year of publication 2019
Type Conference abstract
MU Faculty or unit

Faculty of Science

Citation
Description Substrate-assisted laser desorption single particle inductively coupled plasma mass spectrometry (SALD SP ICP MS) is an effective analytical technique for nanoparticles characterisation. This technique allows a quick determination of nanoparticles of a different composition up to 15 nm without any sample modification. By our present results, a typical transport efficiency of SALD SP ICP MS nanoparticles deposited on samples is around 50 % for UV lasers. Due to thermal decomposition of nanoparticles in an ablation cell and their subsequent dispersing in a carrying gas is difficult to achieve a higher transport efficiency at using common 213nm UV lasers. In our experiments, we used a commercial 213nm UV laser ablation system with 50ms washout ablation cell and a lab-made 2940 nm laser ablation system with a simple ablation cell. As samples, we used Au nanoparticles and NaYF4 upconversion nanoparticles deposited on a plastic substrate or a cancerous tissue. Single particle upconversion (UC) microscopy was chosen as a reference method for SALD SP ICP MS.
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