Method development in LC-MS/MS focused on derivatization and sample pre-treatment for determination of glyphosate, glufosinate, and AMPA at low concentration in urine for chronic exposure assessment - Barraca, Matheus; Birolli, Willian Garcia; Santos Neto, Alvaro Jose dos (Congresso Latino-Americano de Cromatografia e Técnicas Afins (COLACRO), 2025)