@article{shabani_dadfarnia_moosavinejad_ahmadi_2009,  title={On-line preconcentration system using a microcolumn packed with Alizarin Red S-modified alumina for zinc determination by flame atomic absorption spectrometry},  volume={32},  ISSN={0100-4042},  url={https://doi.org/10.1590/S0100-40422009000500022},  DOI={10.1590/S0100-40422009000500022},  number={5},  journal={Química Nova},  publisher={Sociedade Brasileira de Química},  author={Shabani, A.M. Haji and Dadfarnia, S. and Moosavinejad, T. and Ahmadi, Seyyed Hamid},  year={2009},  pages={1202–1205} }