Utilization of SRTXRF to detect trace elements in Gomphrena globosa in natura and from cell cultures: an ecotoxicological approach - Sato, Gabriel Henrique Hamamoto; Salvador, Marcos José; Zucchi, Orghêda Luiza Araujo Domingues (Reunião Anual de Usuários (RAU do Laboratório Nacional de Luz Sincroton (LNLS, 2005)