Removal of copper(II) from sugar-cane spirits employing chitosan

AUTOR(ES)

Janegitz, Bruno C., Oliveira, Andrea, Gomes, Marcos S., Sartori, Elen R., Pereira-Filho, Edenir R., Fatibello-Filho, Orlando

FONTE

Química Nova

DATA DE PUBLICAÇÃO

2010

RESUMO

A method employing chitosan as complexant agent in the removal of copper(II) ions generally present in the Brazilian cachaça samples is herein proposed. The efficiency of this method is attributed to its high capacity of metal cations adsorption, mainly due to presence of hydroxyl and amine groups that can serve as chelating sites. The removal of copper(II) ions from this alcoholic beverage was efficient employing either in column and batch system. The analysis were carried out employing the flame atomic absorption spectrometry and the remaining copper(II) concentrations in the treated cachaça were lower than LOD of FAAS technique.

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