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. 2011 Jan 14;12(1):362–375. doi: 10.3390/ijms12010362

Scheme 2.

Scheme 2

The detection process for different concentrations of AFP on SPCE. (I): different concentrations of AFP nanoprobes from 0 to 200 ng·mL−1 were dropped on the working electrode of SPCE; (II): the current signal recorded by DPV; (III): the planar graph of the three-electrode SPCE system. (a) Work electrode; (b) Ag/AgCl reference electrode; (c) Carbon counter electrode; (d) Insulator; (e) Joint.