Intracellular Voltammetry at Ultrasmall Platinum Electrodes
Abstract
Ultrasmall platinum ring electrodes have been constructed by electrodeposition of platinum onto carbon ring electrodes. Electrodes thus formed show similar adsorption/desorption peaks for hydrogen and oxygen in 0.50 M H2SO4 solution compared to those obtained at conventional-sized electrodes. These electrodes have been used in conjunction with a technique involving linear scan voltammetry and subsequent cleaning pulses. In this technique, the applied potential is ramped anodically from an initial potential to a final potential, followed by a large positive potential to oxidatively clean the electrode and a large negative potential for electrode activation. Intracellular measurements of dopamine at platinum ring electrodes have been studied by integrated pulse linear scan voltammetry. In all experiments, minimal electrode fouling allows repeatable quantitative measurements to be carried out. Ultrasmall platinum electrodes, Electrodeposition.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 12, 1991
- Accession Number
- ADA248009
Entities
People
- A. G. Ewing
- D. K. Wong
- G. Luo
- Y. Y. Lau
Organizations
- Pennsylvania State University