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. 2010 Dec 13;10(12):11414–11427. doi: 10.3390/s101211414

Figure 7.

Figure 7.

Z’norm (10 kHz) from EIS analysis of EII in 0 μg/mL and 1 μg/mL of Ag at (a) pH 7, (b) pH 5, and (c) pH 3. Ricin, the biological toxin, was used as the Ag of EII.