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. Author manuscript; available in PMC: 2011 Sep 15.
Published in final edited form as: Talanta. 2010 Jun 25;82(4):1149–1155. doi: 10.1016/j.talanta.2010.06.025

Fig. 6.

Fig. 6

MALDI-TOF mass spectrum after controlled potential oxidation of 20 μM 5-HTPP at an ITO|npSG electrode. Supporting electrolyte, a) 0.1 M KCl (adjusted to pH 2.6 with HCl); b) 0.1 M phosphate buffer (pH 7.2).