Abstract
Procedures are described for preparing macroreticular chelating resins with hydroxamic acid or N-methylhydroxamic acid functional groups. The chelating properties of the resins are compared with each other and with an N-phenylhydroxamic acid resin reported earlier. The extraction of 19 metal ions was studied as a function of pH for the N-methylhydroxamic acid resin. Several analytical applications of this resin have been demonstrated including the purification of chemical reagents, concentration of trace metal ions, and chromatographic separation of metal-ion mixtures.
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