TY - JOUR T1 - Selective reduction of arsenic species by hydride generation: atomic absorption spectrometry part 1 - reduction media JO - Journal of the Brazilian Chemical Society A1 - Quináia, Sueli Pércio A1 - Rollemberg, Maria do Carmo Ezequiel SN - 0103-5053 UL - 10.1590/S0103-50531997000400006 VL - 8 Y1 - 1997 PB - Brasil ER -