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Preconcentration, determination and speciation of iron by solid-phase extraction using dimethyl (E)-2-[(Z)-1-acetyl)-2-hydroxy-1-propenyl]-2-butenedioate
2012
Química Nova
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Recebido em 2/6/11; aceito em 24/9/11; publicado na web em 6/12/11 A new sensitive and selective procedure for speciation of trace dissolved Fe(III) and Fe(II), using modified octadecyl silica membrane disks and determination by flame atomic absorption spectrometry was developed. A ML 3 complex is formed between the ligand and Fe(III) responsible for extraction of metal ion on the disk. Various factors influencing the separation of iron were investigated and the optimized operation conditions
doi:10.1590/s0100-40422012000300018
fatcat:p3drk6jxafewdfw75cdpcf7ida