Effect of purified and functionalized multi walled carbon nanotube modified electrode for determination of thiocholine

The electrochemical activity of fore different carbon nanotube modified graphite electrodes, treated and functionalized with three methods has been assessed and compared. These treatment attaches COOH groups to the multi-walled carbon nanotube (MWCNT). The amperometric thiocholine detection on MWCNT modified electrode at +750 mV provided at least 20% increase in sensitivity and 10% in range of linearity compares with bare electrode.

Keywords:

carbon nanotube , electrochemical properties , thiocholine