A procedure for preparing carbon paste microeletrodes is described. This procedureis based on incorporation of carbon paste into the microholes at the tips ofchemically etched microdisk electrodes. The electrodes comb...A procedure for preparing carbon paste microeletrodes is described. This procedureis based on incorporation of carbon paste into the microholes at the tips ofchemically etched microdisk electrodes. The electrodes combine the advantages ofmicrodisk electrodes and carbon paste electrodes. Sigmoidal-shape voltammograms wereobserved and steady-state currents were quickly achieved on these electredes.展开更多
A new procedure for developing high performance enzyme electrode is described. The procedure is based on the covalently binding of horseradish peroxidase to a self-assembling monolayer on a gold electrode. An enhanced...A new procedure for developing high performance enzyme electrode is described. The procedure is based on the covalently binding of horseradish peroxidase to a self-assembling monolayer on a gold electrode. An enhanced catalytic current is observed with addition of hydrogen peroxide into phosphate buffer solution (PBS) in the presence of mediators. The electrode exhibits high sensitivity and a wide linear range to hydrogen peroxide.展开更多
Several aspects of the application of silver electrode to the electrochemical studies of hemoglobin have been discussed in this paper. The silver electrode could not only be used directly as the electrode for the elec...Several aspects of the application of silver electrode to the electrochemical studies of hemoglobin have been discussed in this paper. The silver electrode could not only be used directly as the electrode for the electrochemical studies of hemoglobin, but also react with phenothiazine and benzimidazole to give stable and useful mediator-coated electrodes. In addition, the silver electrode could help sodium dodecyl sulfate to give full play to its promoting effect on the protein.展开更多
文摘A procedure for preparing carbon paste microeletrodes is described. This procedureis based on incorporation of carbon paste into the microholes at the tips ofchemically etched microdisk electrodes. The electrodes combine the advantages ofmicrodisk electrodes and carbon paste electrodes. Sigmoidal-shape voltammograms wereobserved and steady-state currents were quickly achieved on these electredes.
文摘A new procedure for developing high performance enzyme electrode is described. The procedure is based on the covalently binding of horseradish peroxidase to a self-assembling monolayer on a gold electrode. An enhanced catalytic current is observed with addition of hydrogen peroxide into phosphate buffer solution (PBS) in the presence of mediators. The electrode exhibits high sensitivity and a wide linear range to hydrogen peroxide.
基金Project supported by the National Natural Science Foundation of China.
文摘Several aspects of the application of silver electrode to the electrochemical studies of hemoglobin have been discussed in this paper. The silver electrode could not only be used directly as the electrode for the electrochemical studies of hemoglobin, but also react with phenothiazine and benzimidazole to give stable and useful mediator-coated electrodes. In addition, the silver electrode could help sodium dodecyl sulfate to give full play to its promoting effect on the protein.
