Direct Analysis of Gold and Silver Nanoparticles of Different Sizes from Dried Droplets Using Substrate-Assisted Laser Desorption Single Particle-ICP MS

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F19%3A00107278" target="_blank" >RIV/00216224:14310/19:00107278 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
Direct Analysis of Gold and Silver Nanoparticles of Different Sizes from Dried Droplets Using Substrate-Assisted Laser Desorption Single Particle-ICP MS
Original language description
This contribution deals with the determination of gold and silver nanoparticles by Substrate-Assisted Laser Desorption Inductively Coupled Plasma Mass Spectrometry (SALD ICP MS). Water suspensions of the both silver and gold nanoparticles of different sizes (20, 40, 60 and 80 nm) were deposited onto a polyethylene terephthalate glycol (PETG) plate using a commercial micropipette. After the evaporation of the solvent the PETG plate was transferred into the commercial ablation chamber. Dried droplets which contained nanoparticles were irradiated by Nd:YAG laser (213 nm). Ablated nanoparticles were carried from the ablation chamber by helium into the ICP plasma and analyzed by mass spectrometer in a single particle mode. In order to gain the highest transport efficiency of each nanoparticle size, the conditions of analysis including laser fluence, laser beam scan rate and carrier gas flow rate were optimized. The advantages of the developed method are low sample volume consumption, possibility of the archiving of the sample and outstanding sensitivity in the order of units of silver or gold nanoparticles.
Czech name
—
Czech description
—

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)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)