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. 2018 Aug 28;13(8):e0202274. doi: 10.1371/journal.pone.0202274

Fig 8. Measurements of electrode potential of saline solutions supplemented with CNTs using sodium ion selective electrode.

Fig 8

A standard curve potential (mV) versus Na+ concentration (ppm) was performed using a sodium ion selective electrode (A), effects of a wide range of concentrations of CNTs on the electrode potential of 1 mM NaCl solutions (B) as well as effects of CNTs (50 μg/ml) on electrode potential of saline solutions with different concentrations of NaCl (C) were recorded. All the experiments were done in triplicate.