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Calixarene-based cation exchange resins have been developed by methylene crosslinking of calix[4]- and calix[6]arene carboxylic acid derivatives and solid phase extraction behavior of the resins towards some multivalent metal ions has been studied. The extraction profile of metal ions as a function of pH follows the order In(III)> Ga(III)> Fe(III)> Zn(II). The cooperativity effect of plural...
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