Abstract
A new chelating resin has been synthesized that contains a propylenediaminetetraacetic acid functional group which is attached to a carboxylic acid divinylbenzene resin via an esterification reaction. The new resin retains polyvalent metal cations at pH 3 or higher. It retains copper(II), uranium(VI), thorium(IV), and zirconium(IV) from more acidic solutions. A scheme is given for clean, rapid chromatographic separation of the last three elements from each other. The resin is also able to retain quantitatively a number of trace elements from simulated seawater.
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