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Avaliação da distribuição de cobre associado a compostos de diferentes massas moleculares na polpa de açaí
(Instituto Nacional de Pesquisas da Amazônia, 2012-06) TRINDADE, Samantha Leite da; NUNES, Patrícia de Oliveira; DANTAS, Kelly das Graças Fernandes
In this study, size exclusion chromatography (SEC) with ultraviolet (UV) and graphite furnace atomic absorption spectrometry (GF AAS) off-line detection was used to investigate the association of copper to high molecular weight (HMW) and low molecular weight (LMW) species present in Euterpe oleracea Mart. pulp. Total concentration of copper was 10.5 µg g-1. Copper was found to be associated to fractions corresponding to 28.7, 2.6 and 0.43 kDa.