Internal standardization in graphite furnace atomic absorption spectrometry: comparative use of As and Ge to minimize matrix effects on Se determination in milk - Oliveira, Adriana Paiva de; Gomes Neto, José Anchieta; Nóbrega, Joaquim de Araújo; Oliveira, Pedro Vitoriano de (Spectrochimica Acta Part B - Atomic Spectroscopy, 2005)