TY - JOUR T1 - Cadmium and lead cloud point preconcentration and determination in tobacco samples by thermospray flame furnace atomic absorption spectrometry JO - Journal of the Brazilian Chemical Society A1 - Andrade, Frank P. A1 - Nascentes, Clésia C. A1 - Costa, Letícia M. SN - 0103-5053 UL - 10.1590/S0103-50532009000800011 VL - 20 Y1 - 2009 PB - Brazil ER -