Electrochemical Oxidation of Ethinylestradiol on a Commercial Ti/Ru_0.3 Ti_0.7O₂ DSA Electrode

Figure 6

Chromatograms (GC-MS) obtained upon the SPME extraction (DVB/CAR/PDMS fiber) of a solution of ethinylestradiol (100 mg L⁻¹ in water/methanol 7 : 3 v/v at pH 2 with addition of NaCl 250 mg L⁻¹) submitted to the electrochemical treatment. Aliquots were withdrawn at the following reaction times: (a) 0 min; (b) 120 min.

(a)

(b)