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Application of the extraction by EDTA acid on gravitation dust sediment samples from the Koice industrial region

Abstract

This work is focused on the experimental determination of the effect of extraction time and pH of the 0.05 M EDTA on the extraction degree of selected elements. It has been determined that the pH of 0.05 M EDTA = 7 as specified by the norm is possible to be used for the extraction of the dust sediment but the 1-hour extraction is not satisfactory for the isolation of all mobilizable elements forms

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