title: Methylene crosslinked calix[6]arene hexacaarboxylic acid resin: a highly efficient solid phase extractant for decontamination of lead bearing effluents.
abstract: Calixarene-based cation exchange resin has been developed by methylene crosslinking of calix[6]arene hexacarboxylic acid derivative and the resin has been exploited for solid phase extraction of some toxic heavy metal ions. The selectivity order of the resin towards some metal ions follows the order Pb(II) > Cu(II)> Zn(II), Ni(II), Co(II). The maximum lead ion binding capacity of the resin was found to be 1.30 mmol g(-1) resin. The loaded lead was quantitatively eluted with dilute acid solution regenerating the resin. Mutual separation of Pb(II), Cu(II) and Zn(II) was achieved by using the column packed with the resin.
authors.affiliation: Department of Chemistry and Applied Chemistry, Faculty of Science and Engineering, Saga University, 840-8502, 1-Honjo, Saga, Japan.
authors.forename: Birendra Babu
authors.initials: BB
authors.lastname: Adhikari
authors.forename: Manju
authors.initials: M
authors.lastname: Gurung
authors.forename: Hidetaka
authors.initials: H
authors.lastname: Kawakita
authors.lastname: Jumina
authors.forename: Keisuke
authors.initials: K
authors.lastname: Ohto
mesh_terms: D047250:Calixarenes / Q000737:chemistry*; D002264:Carboxylic Acids / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007854:Lead / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D010636:Phenols / Q000737:chemistry*; D052616:Solid Phase Extraction
chemical_list: D002264:Carboxylic Acids; D010636:Phenols; C476540:calix(6)arene; D047250:Calixarenes; D007854:Lead