Synchrotron radiation total reflection X-ray fluorescence (SR-TXRF) for evaluation of food contamination - Vives, Ana Elisa Sirito; Moreira, S.; Brienza, Sandra Maria Boscolo; Zucchi, Orghêda Luiza Araujo Domingues; Nascimento Filho, Virgilio Franco do (Journal of Radioanalytical and Nuclear Chemistry, 2006)