TY - JOUR T1 - Determining aflatoxins B1, B2, G1 and G2 in maize using florisil clean up with thin layer chromatography and visual and densitometric quantification JO - Food Science and Technology A1 - CASTRO, Luciana de A1 - VARGAS, Eugenia Azevedo SN - 0101-2061 UL - 10.1590/S0101-20612001000100024 VL - 21 Y1 - 2001 PB - Brasil ER -