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. Author manuscript; available in PMC: 2018 Mar 31.
Published in final edited form as: Sens Actuators B Chem. 2016 Oct 18;241:398–405. doi: 10.1016/j.snb.2016.10.079

Figure 2.

Figure 2

Probe characterization by SEM and EDS analysis. a) SEM image of probe tip; b) the epoxy module immobilized several finished probe within it; c) three different probe cross-sections; d) SEM image of cross section of the dual-core double-fiber twisted pH probe; e) magnified image of square area in (d); f) EDS scanning result of red-circled area in (e); g) and h) EDS scanning results of yellow-circled areas in (e).