Multi-element analysis of soft drinks and plastic bottles by synchrotron radiation total-reflection X-ray fluorescence - Santos, Leandro Luiz dos; Salvador, Marcos José; Moreira, Silvana; Zucchi, Orghêda Luiza Araujo Domingues (Reunião Anual de Usuários (RAU do Laboratório Nacional de Luz Sincroton (LNLS, 2005)