Zdrojový dokument:Sensing in electroanalysis. K. Vytřas, K. Kalcher, I. Švancara (Eds.). 2010, Volume 5.
Abstrakt:
We report on possible use of wood-free resin pencil (WPE) as low-cost pH
electrode based on WPE coated by antimony or bismuth film as the main pH sensitive
material. Sensors prepared allowed to measure pH in the range of 3-10 and 10-13.
The pH electrodes proposed can take advantage in strong alkaline and corrosive
systems where the use of traditional glass electrode is limited. Also, they can serve as
the low-cost indicator electrodes in acid-base titrations.
