The Development Of Mercury Ion Selective Electrode With Ionophore 7,16-Di-(2-Methylquinolyl)-1,4,10,13-Tetraoxa-7,16-Diazacyclooctad ecane (DQDC)

Eidi Sihombing, Manihar Situmorang, Timbangen Sembiring, Nasruddin Nasruddin
2015 Modern Applied Science  
The development of mercury ion selective electrode (ISE-Hg) by using ionophore 7,16-Di-(2-methylquinolyl)-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DQDC) in an electrode membrane sensing is explained. The study is aimed to construct an ion selective electrode for mercury by immobilization of ionophore DQDC in a polymeric PVC membrane electrode. Membrane electrode was constructed by casting and spin coated methods from the mixture of DQDC and plastisizer in a polymeric PVC matrix dissolved
more » ... matrix dissolved in a tetrahydofuran solvent. The membrane has been characterized and used as a sensing material in an ISE-Hg. The developed ISE-Hggive sensitive and selective response to mercury, working range linearity lies between 0.005 mM -1.0 mM Hg 2+ , slope 25.82 mV per decade concentration of Hg 2+ (r 2 = 0.998).
doi:10.5539/mas.v9n8p81 fatcat:vjkggz33wzdrpkdlcykdav55by