TY  - JOUR 
T1  - On-line preconcentration system using a microcolumn packed with Alizarin Red S-modified alumina for zinc determination by flame atomic absorption spectrometry
JO  - Química Nova
A1  - Shabani, A.M. Haji
A1  - Dadfarnia, S.
A1  - Moosavinejad, T.
A1  - Ahmadi, Seyyed Hamid
SN  - 0100-4042
UL  - 10.1590/S0100-40422009000500022
VL  - 32 
Y1  - 2009
PB  - Brasil 
ER  -