Abstract

Unicellular green algae are utilized to preconcentrate Cu ions from seawater and riverine water samples. Studies show that after the algae are rinsed with 1% HCl, Cu adsorption on the algae is improved. The addition of sodium citrate and dodecyl sulfate can also improve Cu adsorption. The algae weight and the solution pH are not critical. The seawater matrix does not affect the adsorption efficiency for Cu. Cu preconcentration can be achieved by mixing 6 mg of algae with 10-100 mL of sample and subsequently separating by centrifugation

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