Development of dropping carbon fluid electrodes for polarography

作者：Tatsumi Hirosuke^*; Tanaka Shogo

来源：Electrochimica Acta, 2014, 135: 255-259.

DOI：10.1016/j.electacta.2014.04.146

• Polarography
• Liquid electrodes
• Dropping electrodes
• Carbon paste electrodes

Another type of polarography was investigated using a dropping carbon fluid electrode composed of graphite powder and a mixture of dioctyl phthalate and diiodomethane. The reproducibility of the drop size was improved by changing the tip of capillary and the composition of carbon fluid. Polarograms with clear limiting currents were observed when the concentration of reactant, ferrocenecarboxylate (FcCOO(-)), was lower than 80 mu M. The dependence of the limiting currents on the flow rate of the electrode and the concentration of FcCOO(-) were approximately consistent with the prediction from Ilkovic equation.

• 出版日期2014-7-20