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. 2018 Oct 1;3(10):12369–12382. doi: 10.1021/acsomega.8b01089

Table 4. Comparison of Impedance Parameters for MS in 1 M HCl in the Presence and Absence of Different SFA Concentrations at RT.

			CPE parameters
conc. of SFA (ppm)	R_s (Ω cm²)	R_ct (Ω cm²)	n	Y₀ (μS sⁿ cm^–2)	C_eff (μF cm^–2)	μ_{R_ct} (%)	χ² × 10^–4
blank	2.58 (0.89%)	54.8 (0.37%)	0.827 (0.033%)	128.7 (2.09%)	67.11		3.20
9	4.18 (0.78%)	345.5 (0.45%)	0.816 (0.23%)	107.4 (1.31%)	51.03	84.1	3.29
18	2.13 (1.55%)	372.9 (0.62%)	0.821 (0.29%)	96.04 (1.76%)	46.63	85.3	6.98
27	2.15 (1.67%)	406.0 (0.69%)	0.817 (0.31%)	91.6 (1.86%)	43.48	86.5	8.32
36	2.30 (1.90%)	461.2 (0.78%)	0.831 (0.35%)	82.72 (2.14%)	42.18	88.2	1.09