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Al(III) and Fe(III) Balance in Hemodialysis Treatment Assessed via Fluid Analysis by Adsorptive Stripping Voltammetry and UV Sample Digestion
Author(s) -
Nascimento Paulo C.,
DelFabro Luciana D.,
Bohrer Denise,
de Carvalho Leandro M.,
Rosa Marcelo B.,
Noremberg Simone M.
Publication year - 2008
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200704155
Subject(s) - adsorptive stripping voltammetry , chemistry , voltammetry , adsorption , stripping (fiber) , detection limit , matrix (chemical analysis) , metal , analytical chemistry (journal) , nuclear chemistry , chromatography , electrode , electrochemistry , materials science , composite material , organic chemistry
Simultaneous determination of Al(III) and Fe(III) in posthemodialysis fluids was investigated by the Adsorptive stripping voltammetry of solochrome violet metal complexes. The adsorption of the complexes on the mercury electrode (HMDE) was investigated by out of phase altenating current voltammetry in presence of the main matrix interfering species. Sample digestion by UV irradiation was investigated to overcome the matrix interference. The proposed method was valid for real posthemodialysis samples containing or not Desferrioxamine B. Detection limits of 1.4 and 1.8 μg L −1 were calculated for Al(III) and Fe(III), respectively. Recoveries ranging from 88.1 to 106.3% were obtained from spiking experiments.