Fig. 7. SECCM schematic set-up for voltammetry and amperometry. (a) dual barrel, (b) single barrel probes (micro- or nano-pipets) filled with an electrolyte and QRCE(s) used as SECCM scanning probes; schematic of probe movement at a (c) constant tip distance from the surface, and (d) hopping scanning regime over the sample. Inset in (d) shows the E–t linear sweep voltammogram (LSV) and the corresponding current recorded each time the meniscus lands. Reproduced from ref. 95 with permission from Elsevier © 2020.
