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Química Nova

Print version ISSN 0100-4042On-line version ISSN 1678-7064


AZEREDO, Laerte da Cunha et al. Determination of Cd, Ni and Zn by inductively coupled plasma emission atomic spectrometry after separation and preconcentration in column packed with 5-(4-dimethylaminobenzylidene) rhodanine adsorbed on silica gel. Quím. Nova [online]. 1999, vol.22, n.4, pp.512-515. ISSN 0100-4042.

A column packed with 5-(4-dimethylaminobenzylidene)rhodanine adsorbed on silica gel was used for the preconcentration of Cd, Ni and Zn at different spiked solutions prior to their determination by inductively coupled plasma atomic emission spectrometry. This column allowed recoveries over than 98% for the above elements and accurate analyses of coastal sea-water certified reference material were also achieved.

Keywords : separation; preconcentration; column.

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