The effect of incomplete spike reaction on the determination of trace metals in a complexing matrix by standard additions.
In the determination of trace metals, a preconcentration step is frequently necessary. A simple model is developed to demonstrate the magnitude of the error incurred in the application of the standard-additions method if full equilibration of the spike with a sample matrix that contains complexing species is not reached before the preconcentration is completed.
Corsini
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A
Department of Chemistry, McMaster University, Hamilton, Ontario, Canada L8S 4M1.
Wan
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CC
Chiang
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