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. Author manuscript; available in PMC: 2015 Sep 7.
Published in final edited form as: Anal Methods. 2015 Jun 8;7(17):7095–7105. doi: 10.1039/C5AY00512D

Fig. 8.

Fig. 8

(a) Cyclic voltammograms and (b) amperometric i–t curves for 0.25–6 mM acetylcholine using a nanopipet probe with a radius of 7 nm in Cell 1; applied potential E = −0.25 V vs. E1/2,TEA for i–t curves. (c) Cyclic voltammograms and (d) amperometric i–t curves for 0.5–10 mM tryptamine using a nanopipet probe with a radius of 19 nm in Cell 1; applied potential E = −0.32 V vs. E1/2,TEA for i–t curves. Modified from ref. 37.