Yiğiter, ŞengülBayrakçı, MevlütErtul, ŞerefYılmaz, Mustafa2020-03-262020-03-2620120021-8995https://dx.doi.org/10.1002/app.35471https://hdl.handle.net/20.500.12395/28463This article describes the synthesis and characterization of four new calix[4]arene ionophores 57 and 9 and corresponding two new silica gel-immobilized calix[4]arene ionophores containing pyridine 10 and 11 via modification of calix[4]arene monoamide derivatives 5 and 6 with aminopropyl silica gel, respectively. The extraction studies have been performed using liquidliquid extraction for receptors 57 and 9 and solidliquid batchwise sorption procedures for receptors 10 and 11. Obtained extraction results showed that the immobilized-calix[4] arene ionophores 10 and 11 have high extraction ability toward chromate and phosphate anions as compared to their corresponding monomeric precursors 5 and 6. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012en10.1002/app.35471info:eu-repo/semantics/closedAccessdichromatephosphatecalix[4]arenesorptionimmobilized calixareneArticle124538313839Q2WOS:000300971400037Q2