A PVC membrane electrode based on copper（II） bis（N-2-bromophenylsalicyldenaminato） as ionophor was prepared. The ion selective electrode was tested by inorganic anions and showed a good selectivity for iodide ion....A PVC membrane electrode based on copper（II） bis（N-2-bromophenylsalicyldenaminato） as ionophor was prepared. The ion selective electrode was tested by inorganic anions and showed a good selectivity for iodide ion. This sensor exhibited Nernstian behavior with a slope of -57.8 mV per decade at 25℃. The proposed electrode showed a linear range from 1.0 × 10 ^-5 to 1.0 × 10 ^-1 mol/L with a detection limit of 5.0 × 10 ^-6 mol/L. The electrode response was independent of pH in the range of 3.0- 10.0. The proposed sensor was applied to determine the iodide in water and antiseptic samples.展开更多
In this work a PVC membrane electrode based on bis（N-3-methyl phenyl salicylidenaminato）copper（II）as ionophore was prepared.The electrode was tested by inorganic anions and showed good selectivity for thiocyanate ...In this work a PVC membrane electrode based on bis（N-3-methyl phenyl salicylidenaminato）copper（II）as ionophore was prepared.The electrode was tested by inorganic anions and showed good selectivity for thiocyanate ion.This sensor showed Nerstian behavior with a slope of a-59.3 mV per decade at 25℃.The proposed electrode exhibited a wide linear range from 1.0 × 10^-6 mol/L to 1.0× 10^-1 mol/L with a detection limit of 5.0×10^-7 mol/L.The electrode response was independent of pH in the range of 4.0-10.0.The response time is about 9-21s,and the electrode can be used for over 60 days without considerable deterioration.The prepared sensor was applied as an indicator electrode in potentiometric titration of SCN^- with Ag^＋ ion and to determine the thiocyanate in samples of urine and saliva.展开更多
文摘A PVC membrane electrode based on copper（II） bis（N-2-bromophenylsalicyldenaminato） as ionophor was prepared. The ion selective electrode was tested by inorganic anions and showed a good selectivity for iodide ion. This sensor exhibited Nernstian behavior with a slope of -57.8 mV per decade at 25℃. The proposed electrode showed a linear range from 1.0 × 10 ^-5 to 1.0 × 10 ^-1 mol/L with a detection limit of 5.0 × 10 ^-6 mol/L. The electrode response was independent of pH in the range of 3.0- 10.0. The proposed sensor was applied to determine the iodide in water and antiseptic samples.
文摘In this work a PVC membrane electrode based on bis（N-3-methyl phenyl salicylidenaminato）copper（II）as ionophore was prepared.The electrode was tested by inorganic anions and showed good selectivity for thiocyanate ion.This sensor showed Nerstian behavior with a slope of a-59.3 mV per decade at 25℃.The proposed electrode exhibited a wide linear range from 1.0 × 10^-6 mol/L to 1.0× 10^-1 mol/L with a detection limit of 5.0×10^-7 mol/L.The electrode response was independent of pH in the range of 4.0-10.0.The response time is about 9-21s,and the electrode can be used for over 60 days without considerable deterioration.The prepared sensor was applied as an indicator electrode in potentiometric titration of SCN^- with Ag^＋ ion and to determine the thiocyanate in samples of urine and saliva.
