Open Access Open Access  Restricted Access Subscription Access
Open Access Open Access Open Access  Restricted Access Restricted Access Subscription Access

Potentiometric Determination of Heavy Metals Concentrations in Trace by Using Calixarene as Electroactive Materials


Affiliations
1 Department of Chemistry, S.S.V. Post Graduate College, Hapur, India
     

   Subscribe/Renew Journal


Functionalized calixarene molecules 5,11,17,23-tetra-tert-butyl-25,26,27-tris (chlorocarbonylmethoxy)-28-hydroxycalix [4] arene for Cd (II) and 5,11,17,23-tetra-tert-butyl-25,26,27,28-tetrakis (chlorocarbonylmethoxy) calix [4] arene for Ni (II) were tested as a possible ionophore in ion selective electrodes (ISEs) and successfully applied for the detection of heavy metals ions from environmental and industrial waste waters. These electrodes gave more stable potential readings when used around neutral pH 5.5-8.5 in both cases. The sensors were found to work satisfactorily in partially non-aqueous media up to 25% (v/v) content of acetone, methanol or ethanol and could be used over a period of 5 months. Potentiometric selectivity coefficients as determined by match potential method (MPM) indicate excellent selectivity for Cd2+ and Ni2+ ions. The sensors could be used successfully in the estimation of cadmium and nickel in electrochemical battery wastes and also as indicator electrodes in potentiometric titration.

Keywords

Calixarene Ionophores, PVC, Ion Selective Electrodes, Cd2+ and Ni2+, Potentiometry.
Subscription Login to verify subscription
User
Notifications
Font Size


Abstract Views: 152

PDF Views: 0




  • Potentiometric Determination of Heavy Metals Concentrations in Trace by Using Calixarene as Electroactive Materials

Abstract Views: 152  |  PDF Views: 0

Authors

Susheel Kumar Sindhu
Department of Chemistry, S.S.V. Post Graduate College, Hapur, India
Yogender Singh
Department of Chemistry, S.S.V. Post Graduate College, Hapur, India
Reetu Singh
Department of Chemistry, S.S.V. Post Graduate College, Hapur, India

Abstract


Functionalized calixarene molecules 5,11,17,23-tetra-tert-butyl-25,26,27-tris (chlorocarbonylmethoxy)-28-hydroxycalix [4] arene for Cd (II) and 5,11,17,23-tetra-tert-butyl-25,26,27,28-tetrakis (chlorocarbonylmethoxy) calix [4] arene for Ni (II) were tested as a possible ionophore in ion selective electrodes (ISEs) and successfully applied for the detection of heavy metals ions from environmental and industrial waste waters. These electrodes gave more stable potential readings when used around neutral pH 5.5-8.5 in both cases. The sensors were found to work satisfactorily in partially non-aqueous media up to 25% (v/v) content of acetone, methanol or ethanol and could be used over a period of 5 months. Potentiometric selectivity coefficients as determined by match potential method (MPM) indicate excellent selectivity for Cd2+ and Ni2+ ions. The sensors could be used successfully in the estimation of cadmium and nickel in electrochemical battery wastes and also as indicator electrodes in potentiometric titration.

Keywords


Calixarene Ionophores, PVC, Ion Selective Electrodes, Cd2+ and Ni2+, Potentiometry.