1. Institute of Analytical Chemistry of the Czech Academy of Sciences
2. 602 00 Brno
3. Czech Republic
4. Faculty of Chemistry
5. Grupo de Análisis de Elementos Traza y Desarrollo de Estrategias Simples para Preparación de Muestras (GATPREM)
6. University of Chemistry and Technology, Prague
7. Faculty of Chemical Engineering
8. Analytical Chemistry
9. DEC
10. Universidad de la República