Evaluation of element availability in bottom sediments by synchrotron total reflection X-ray fluorescence analysis (SR-TXRF) - Moreira, S.; Vives, Ana Elisa Sirito de; Nascimento Filho, Virgilio Franco do; Zucchi, Orghêda Luiza Araújo Domingues; Brienza, Sandra Maria Boscolo (Journal of Radioanalytical and Nuclear Chemistry, 2006)