Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
ISSN-L : 0910-6340
DETERMINATION OF METAL IONS IN ENVIRONMENTAL WATERS BY FLAMELESS ATOMIC ABSORPTION SPECTROMETRY COMBINED WITH PRECONCENTRATION USING A SULFONATED DITHIZONE-LOADED RESIN
MASAHIKO CHIKUMAHIROYUKI AOKIHISASHI TANAKA
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1991 Volume 7 Issue Supple Pages 1131-1134

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Abstract

Flameless atomic absorption spectrophotometric methods combined with preconcentration by using tailor made chelate-forming resins have been developed for the determination of very low concentrations of several heavy metal ions in environmental water samples. The chelate-forming resin is prepared by loading a sulfonated dithizone (DzS) on an anion-exchange resin. DzS-loaded resin is useful for selective collection of heavy metal ions. The resin, in which metal ions are adsorbed, is introduced into a graphite-furnace in the determination of nickel(II), cobalt(II), copper(II) and palladium(II) and into a vessel for hydride generation in the case of lead(II), without eluting the metal ions from the resin. The proposed methods have been applied successfully to the determination of trace amounts of heavy metal ions in environmental water samples.

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