Solid Phase Extraction with Chelating Adsorbents for the Study of Trace Metals in Seawater

Abstract

Solid phase extraction with chelating adsorbents is useful for the preconcentration of trace metals in seawater. We have examined a number of chelating adsorbents and developed simultaneous determination methods for trace metals in seawater on the basis of preconcentration by solid phase extraction and determination by ICP-MS. Here we review the results on the determination of trace bioactive metals(Fe, Co, Ni, Cu, Zn, Cd and Pb)using fluoride-containing metal alkoxide glass immobilized 8-hydroxyquinoline(MAF-8HQ)and the determination of the second and third transition series metals(Zr, Hf, Nb, Ta, Mo and W)using vinyl polymer resin immobilized 8-hydroxyquinoline(TSK-8HQ).