ELEMENTAL CHARACTERISATION OF GEOLOGICAL AND BIOLOGICAL SAMPLES USING PARTICLE INDUCED X-RAY EMISSION. EPH-International Journal of Applied Science, [S. l.], v. 12, n. 4, p. 61–76, 2026. DOI: 10.69980/yew5sf29. Disponível em: https://eijas.com/index.php/as/article/view/289. Acesso em: 30 oct. 2026.