Vol 63 No 4 (2018): Journal of the Chilean Chemical Society
Original Research Papers


Naysa Díaz
Department of Analytical and Inorganic Chemistry, Facultad de Ciencias Químicas, Universidad de Concepción
Mónica Pérez-Rivera
Department of Polymers, Facultad de Ciencias Químicas, Universidad de Concepción
Rosario Castillo
Faculty of Pharmacy, Universidad de Concepción
Rodolfo Mundaca
3Faculty of Pharmacy, Universidad de Concepción
Felipe Aravena
Department of Analytical and Inorganic Chemistry, Facultad de Ciencias Químicas, Universidad de Concepción
Mario Aranda
Faculty of Pharmacy, Universidad de Concepción
Carlos Peña-Farfal
Department of Analytical and Inorganic Chemistry, Facultad de Ciencias Químicas, Universidad de Concepción
Published January 9, 2019
  • Photoelectroxidationn,
  • Estriol,
  • Ethynilestradiol,
  • endocrine disruptor,
  • DSA (Ti/RUO2)


The effect of different variables in the electrochemical removal of estriol (E3) in aqueous solution was studied and it was compared with the removal of 17 α- Ethinylestradiol. The photoelectroxidations were carried out with DSA electrode (Ti/RuO2), varying the pH, substrate concentration and supporting electrolyte, potential configuration of saline bridge, reactor volume, and light source. Results for both Estriol and 17 α- Ethinylestradiol are similar, showing to be the best removals at concentrations of 500 ug/L of substrate, volumes to be treated of 90 ml of solution, saline bridge of 30 cm in length, voltages between 0.8 and 3, concentration of Na2SO4 of 0.1 M, pH between 6 and10, and UV lamp of 125 W.


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