Carbon Pastes and Carbon Paste Electrodes - Electroanalysis with Carbon Paste Electrodes - page 47

with. carbon. paste.. The. wheel. was. slowly. rotated. by. electromotor. while. partially. immersed. in. a.
bowl.with.the.sample.solution..Such.construction.had.allowed.one.to.regenerate.the.paste.during.
measurements,.when.the.surface.of.carbon.pastes.in.the.holes—being.currently.outside.the.solu-
tion—could.be.renewed.mechanically.
Note: . The.purpose.of.the.whole.mechanism.was.to.obtain.an.electrode.with.periodically.renewable.
surface—a.certain.analogue.to.Heyrovsky's.dropping.mercury.electrode..In.contrast.to.unsuccess-
ful. experimentation. with. a. dropping. carbon. electrode. [1-3,8],. such. intention. had. been. attained..
This.was.demonstrated.on.model.polarographic.waves.with.oscillations,.corresponding.to.the.peri-
odical.renewal.of.each.hole.with.carbon.paste.[27]..(In.fact,.short.interruptions.of.the.current.low.
had.been.recorded.during.replacement.of.one.hole.by.another,.as.they.emerged/submerged.while.
rotating.the.wheel.)