Discrimination of dopamine and ascorbic acid using carbon nanotube fiber microelectrodes.
The detection of dopamine is a scientific challenge of great importance for the understanding of neurobiological dysfunctions. However the presence of ascorbic acid at concentrations several times higher than that of dopamine and its oxidation at a very similar potential make a selective electrochemical detection difficult. Here we report the original and intrinsic selectivity of carbon nanotube (CNT) fiber microelectrodes (CNTFM) towards dopamine oxidation without significant interaction from ascorbic acid.
Viry
Lucie
L
Université de Bordeaux, Institut des Sciences Moléculaires, ENSCBP, 16 Av. Pey Berland, 33600 Pessac, France.
Derré
Alain
A
Poulin
Philippe
P
Kuhn
Alexander
A
D001205:Ascorbic Acid / Q000032:analysis* / Q000737:chemistry; D004298:Dopamine / Q000032:analysis* / Q000737:chemistry; D004563:Electrochemistry; D008839:Microelectrodes; D037742:Nanotubes, Carbon / Q000737:chemistry*
D037742:Nanotubes, Carbon; D001205:Ascorbic Acid; D004298:Dopamine