Room temperature ionic liquid （RTILs） [BMIM]PF6 was used as a new kind of binder to construct a chemical modified carbon paste electrode （CPE） and the direct electrochemistry of hemoglobin （Hb）, which was immobi...Room temperature ionic liquid （RTILs） [BMIM]PF6 was used as a new kind of binder to construct a chemical modified carbon paste electrode （CPE） and the direct electrochemistry of hemoglobin （Hb）, which was immobilized on the surface of RTIL/CPE with the film of sodium alginate hydrogel, was studied by cyclic voltammetry. The presence of RTILs improved the direct electron transfer of Hb and a pair of well-defined quasi-revesible redox peaks appeared in pH 7.0 B-R buffer solution. The cathodic and anodic peak potentials were located at -0.383 V and -0.305 V with the formal potential （E^0） at -0.344 V （vs. SCE）. In addition the immobilized Hb showed good electrocatalytic activity to the reduction of H2O2.展开更多
基金supported by the National Natural.Science Foundation of China(No.20405008,20635020).
文摘Room temperature ionic liquid （RTILs） [BMIM]PF6 was used as a new kind of binder to construct a chemical modified carbon paste electrode （CPE） and the direct electrochemistry of hemoglobin （Hb）, which was immobilized on the surface of RTIL/CPE with the film of sodium alginate hydrogel, was studied by cyclic voltammetry. The presence of RTILs improved the direct electron transfer of Hb and a pair of well-defined quasi-revesible redox peaks appeared in pH 7.0 B-R buffer solution. The cathodic and anodic peak potentials were located at -0.383 V and -0.305 V with the formal potential （E^0） at -0.344 V （vs. SCE）. In addition the immobilized Hb showed good electrocatalytic activity to the reduction of H2O2.
