Self-assembled monolayers in electroanalytical chemistry: application of ω-mercapto carboxylic acid monolayers for the electrochemical detection of dopamine in the presence of a high concentration of ascorbic acid.

Date Published:

1993///

Abstract:

Self-assembled monolayers of ω-mercapto carboxylic acids, HS(CH2)nCO2H (n = 2, 5, 10), Cm on gold electrodes were used as a means to induce electrochem. differentiation between a neurotransmitter, dopamine, and ascorbic acid. Optimum differentiation is found for n = 5, and it is attributed to a compromise between a well-organized system that requires long ω-mercapto carboxylic acids and a reasonable rate of electron transfer which is obsd. with short ω-mercapto carboxylic acids. [on SciFinder(R)]

Notes:

CAPLUS AN 1993:899(Journal)