Use of energy dispersive X-ray fluorescence (EDXRF) spectrometry to determine external markers in animal intake estimation trials - Ovani, Vagner Silva; Almeida, Eduardo de; Pérez-Márquez, Simón; Lima, Paulo de Mello Tavares; Louvandini, Helder; Carvalho, Hudson Wallace Pereira de; Abdalla, Adibe Luiz (Microchemical Journal, 2025)