公开(公告)号：US20250012773A1

公开(公告)日：2025-01-09

申请号：US18709246

申请日：2022-11-11

Applicant: CONSEJO SUPERIOR DE INVESTIGACIONES CIENTÍFICAS

Inventor： Wenchao DUAN ,  Martí GICH GARCíA ,  César FERNÁNDEZ SÁNCHEZ

IPC: G01N33/18 ,  G01N27/30 ,  G01N27/48

Abstract: The present invention relates to a screen-printed electrode (1) for detecting a pollutant in a water sample, comprising: a substrate (2); a plurality of conductive tracks (3); an electrochemical cell (4), further comprising a working electrode (5), a pseudo-reference electrode (6) and an auxiliary electrode (7); and an insulating layer (8). Advantageously, said electrode comprises a filtering element (9) impregnated with an electrolyte, which not only filters the water sample received by the electrochemical cell (4), but also preconditions the sample without any user intervention. Therefore, the screen-printed electrode of the invention saves time in pre-processing samples for water pollution analysis while avoiding any possible contamination thereof by user manipulation.