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Continue to ChatPreconcentration-separation of Co2 , Ni2 , Cu2 and Cd2 in real samples by solid phase extraction of a calix[4] resorcinarene modified Amberlite XAD-16 resin - https://avesis.erciyes.edu.tr/yayin/7d04af8d-32d8-4424-aea6-379582aab85c/preconcentration-separation-of-co2-ni2-cu2-and-cd2-in-real-samples-by-solid-phase-extraction-of-a-calix4-resorcinarene-modified-amberlite-xad-16-resin