Flow injection spectrophotometric method for the speciation of aluminium in river and tap waters

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Abstract
An automatic flow injection method for aluminium speciation in waters at the nanogram per millilitre level is reported, based on a Pyrocatechol Violet chelation–ion-exchange method. Data are presented on total reactive aluminium, total monomeric aluminium and non-labile monomeric aluminium. The proposed method is sensitive (detection limit, 5 µg l–1), rapid and reproducible. The results obtained in the analysis of six river and tap water samples were consistent with those provided by the manual counterpart of the method.

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