TY  - JOUR 
T1  - Determination of Metal Ions in Fuel Ethanol after Preconcentration on 5-Amino-1,3,4-Thiadiazole-2-Thiol Modified Silica Gel
JO  - Journal of the Brazilian Chemical Society
A1  - Gomes, Luis A. de Melo
A1  - Padilha, Pedro de Magalhães
A1  - Moreira, José Celso
A1  - Dias Filho, Newton L.
A1  - Gushikem, Yoshitaka
SN  - 0103-5053
UL  - 10.1590/S0103-50531998000500015
VL  - 9 
Y1  - 1998
PB  - Brazil 
ER  -