An investigation of the suitability of amberlite XAD-1 resin for studying trace metal speciation in seawater |
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| Authors: | DJ Mackey |
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| Institution: | Division of Oceanography, CSIRO Marine Laboratories, P.O. Box 21, Cronulla, N.S.W. 2230 Australia |
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| Abstract: | Amberlite XAD-1 resin was examined to test its suitability for extracting organic complexes of copper, zinc and iron from seawater. At low flow rates and at loading capacities far below theoretical values, the adsorption of these metals is not reproducible and the results are reminiscent of the behaviour observed when the adsorption capacity is being exceeded or flow rates are too high. It is suggested that the resin also adsorbs small but significant amounts of inorganic ions from seawater and that this effect makes the resin unsuitable for quantitative measurements of trace metal speciation. |
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