Abstract
This paper deals with problem of mercury drop electrodes replacement in classical polarography by more ecological solid electrodes. The screen-printed thick-film amperometric sensor was prepared for modification by nanostructures. Carbon nanotubes were grown on a working electrode. The process of nanotubes growing was improved to create homogenous and high density carbon nanotubes layer. The modified electrode is very perspective in heavy metal detection using electrochemical methods because of improvement detection properties. We were able to determine units of mumol/L of cadmium.
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