Rapid Screening Method for Detecting Ethinyl Estradiol in Natural Water Employing Voltammetry

Figure 2

Study of the electrochemical process of EE2 (119.5 μg L⁻¹) in Britton-Robinson buffer (pH 7.0) at HMDE by cyclic voltammetry. (a) Cyclic voltammograms with scan rates: (1) 50 mV s⁻¹; (2) 100 mV s⁻¹; (3) 200 mV s⁻¹; (4) 300 mV s⁻¹; (5) 450 mV s⁻¹; (6) 550 mV s⁻¹. (b) Dependence of the peak current intensity as function of scan rate. (c) Dependence of the peak current intensity as function of square root of the scan rate.

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(b)

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