Embedded Based Miniaturized Universal Electrochemical Sensing Platform

Figure 5

((a) and (b)) Two testing EIS curves drawn by original data. All EIS curves are acquired from the electrochemical system in which the sweeping triangular waveform voltage is plus or minus 1.5 V, with the period of 30 s. (a) Original curves of the first test. (b) Original curves of the second test. (c) Denoised EIS curves from the first test. (d) Denoised EIS curves from the second test. The first inflection points on every curve are pointed out by red points. EIS curves are used for calculating the characteristic values. The acreages enclosed by every curve and the slope of the first inflection point are characteristic values.

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