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. 2018 Apr 25;8:6507. doi: 10.1038/s41598-018-24543-4

Figure 3.

Figure 3

(A) Calibration dose response of ethanol in human sweat as a function of percentage change in imaginary impedance (Zimag) (B) Nyquist plots for ethanol concentrations 0.01–200 mg/dl spiked in human sweat (pH ~5.98) (C) Bode magnitude plots for ethanol concentrations 0.01–200 mg/dl spiked in human sweat (pH ~5.98). Inset shows the bode magnitude plots over the frequency range 10–1KHz (D) Equivalent circuit representation of the ethanol detection sweat sensor system.