REFERENCES
- Lee , K. S. , Lee , W. and Lee , D. W. 1978 . Selective separation of metal ions by a chelating agent-loaded anion exchanger . Anal. Chem. , 50 : 255 – 258 .
- Norris , C. D. , Benson , R. F. and Martin , D. F. 1996 . Extraction of heavy metals by resin-supported chelators . Florida Scient. , 5 : 174 – 181 .
- Pooré , D. D. , Benson , R. F. and Martin , D. F. 1996 . Removal of heavy metals from aqueous solutions using dithiooxamides supported on silica gel . J. Environ. Sci. Heal. , A31 : 2167 – 2172 .
- Benson , R. F. and Martin , D. F. 1992 . Supported chelating agents in remediation . The corkscrew model. J. Environ. Sci. Heal. , A27 : 2191 – 2197 .
- Norris , C. D. , Benson , R. F. and Martin , D. F. 1997 . Extraction of heavy metals by chelators attached to silica gel by a corkscrew mechanism . J. Env. Sci. Heal. , 32 : 123 – 132 .
- Bowe , C. A. , Benson , R. F. and Martin , D. F. 2002 . Extraction of heavy metals by mercaptans attached to silica gel by a corkscrew mechanism . J. Environ. Sci. Heal. , A37 : 1391 – 1398 .
- Soliman , E. M. 1997 . Synthesis and metal collecting properties of mono, di, tri and tetramine based on silica gel matrix . Anal. Lett. , 30 : 1739 – 1751 .
- Metre-General. www.octolig.com (accessed June 14, 2004)
- Bowe , C. A. , Krikorian , N. and Martin , D. F. 2004 . Extraction of heavy metals using modified montmorillonite KSF . Florida Scient. , 67 : 74 – 79 .
- Martin , D. F. and Bowe , C. A. 2003 . “ Azeotropic attachment of ligands to silica gel for metal removal agents ” . In Patent appl , Tampa, FL : University of South Florida .
- Peralta-Videa , J. R. , Gardea-Torresdey , J. L , Gomez , E , Tiemann , K. J. , Parsons , J. G. , de la Rosa , G. and Carrillo , G. 2002 . Potential of alfalfa plant to phytoremediate individually . Environ. Contam. Toxicol. , 69 : 74 – 81 . [CROSSREF]
- Lothenbach , B. , Furrer , G. and Schulin , R. 1997 . Immobilization of heavy metals by polynuclear aluminum and montmorillonite compounds . Environ. Sci. Technol. , 31 : 1452 – 1462 . [CROSSREF]
- Wiklander , L. 1964 . “ Cation and anion exchange phenomena ” . In Chemistry of the Soil, , 2nd Ed. , Edited by: Baer , F. E. 163 – 205 . New York : Reinhold .
- Stumm , W. and Morgan , J. J. 1970 . Aquatic Chemistry, , 1st Ed. , 490 pp New York : Wiley-Interscience .
- Liu , A. and Gonzalez , D. 1999 . 1999. Adsorption/desorption in a system consisting of humic acid, heavy metals and clay minerals . J. Colloid. Interf. Sci. , 218 : 225 – 232 . [CROSSREF]
- Barbier , F. , Due , G. and Petit-Ramel , L. 2000 . Adsorption of lead and cadmium ions from aqueous solution to the montmorillonite/water interface . Colloid Surfaces A , 166 : 153 – 159 . [CROSSREF]
- Vengris , T. , Binkiene , R. and Sveikauskaite , A. 2001 . Nickel, copper and zinc removal from wastewater by a modified clay sorbent . Appl. Clay Sci. , 18 : 183 – 190 . [CROSSREF]
- Cox , M. , Rus-Romero , J. R. and Sheriff , T. S. 2001 . The application of montmorillonite clays impregnated with organic extractants for the removal of metals from aqueous solution. Part I. The preparation of clays impregnated with di-(2-ethylhexyl) phosphoric acid and their use for the removal of copper(II) . Chem. Eng. , 84 : 107 – 113 . [CROSSREF]
- Lin , S.-H. and Juang , R.-S. 2002 . 2002. Heavy metal removal from water by sorption using surfactant-modified montmorillonite . J. Hazard. Mater. , B92 : 315 – 326 . [CROSSREF]
- Stumm , W. and Morgan , J. J. 1996 . Aquatic Chemistry, , 3rd Ed. , 368 pp New York : Wiley-Interscience .
- Bowe , C. A. , Pooré , D. D. , Benson , R. F. and Martin , D. F. 2003 . Extraction of heavy metals by amines absorbed onto silica gel . J. Environ. Sci. Heal. , A38 : 2653 – 2660 .