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A water-soluble poly(vinyl alcohol)–acetone system for the pre-concentration and separation of Cu2+in environmental water samples has been developed. First, poly(vinyl alcohol) (PVA) was able to complex with Cu2+, and the reaction product, the copper–PVA complex, was precipitated in excess acetone. Sequentially, the precipitate was separated by decantation and dissolved in a minimum amount of water...
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