Screen-printed electrodes modified with carbon nanotubes or graphene for simultaneous determination of melatonin and serotonin

FEDERICO J. V. GOMEZ; AIDA MARTÍN GALAN; MARIA FERNANDA SILVA; ALBERTO ESCARPA

MIKROCHIMICA ACTA

SPRINGER WIEN

Lugar: Viena; Año: 2015

0026-3672

Single-walled carbon nanotubes (SWCNT), multiwalled carbon nanotubes (MWCNT) and graphene have been tested as carbon allotropes for the modification of carbon screen-printed electrodes (CSPEs) to simultaneously determine melatonin (MT) and serotonin (5-HT). Two groups of CSPEs, both 4 mm in diameter, were explored: The first includes commercial SWCNT, MWCNT and graphene, the second includes SWCNT, MWCNT, graphene oxide nanoribbons and reduced nanoribbons that were drop casted on the electrodes. The carbon nanomaterials enhanced the electroactive area in the following order: CSPE