Financial support of Ruđer Bošković Institute is granted to PhD student Zoran Kiralj based on his application to call MZ2-24. Title of granted project is "Analysis of metal nanoparticles by use of two methods (ICP-MS and hyphenated system HPLC-ICP-MS)". Financial support covered the costs of one month stay for Zoran Kiralj at Faculty of Chemistry at University of Oviedo in Spain, from 4^th September to 3^rd October 2024, under supervision of prof. dr. Maria Montes-Bayón and assist. prof. dr. Mario Corte-Rodríguez.