Details

Autor(en) / Beteiligte

• Oliveira, Gabriela F.
• Hudari, Felipe F.
• Pereira, Fabíola M. V.
• Zanoni, Maria V. B.
• Silva, José L.

Titel

Carbon Nanotube‐Based Molecularly Imprinted Voltammetric Sensor for Selective Diuretic Analysis of Dialysate and Hemodialysis Wastewater

Ist Teil von

• ChemElectroChem, 2020-07, Vol.7 (14), p.3006-3016

Ort / Verlag

Weinheim: John Wiley & Sons, Inc

Erscheinungsjahr

2020

Quelle

Wiley Online Library All Journals

Beschreibungen/Notizen

• A molecularly imprinted polymer (MIP)‐based electrochemical sensor was developed for the monitoring of hydrochlorothiazide (HCT) in dialysate and hemodialysis wastewater. The MIP was constructed by the electropolymerization of ortho‐phenylenediamine on multi‐walled carbon nanotube modified glassy carbon electrode surface. The experimental optimization was carried out by Plackett‐Burman design screening and central composite design. Through square wave voltammetry (SWV) analysis, the sensor presented linear response in the range of 5.0×10−6 to 1.0×10−4 mol L−1 (R=0.9995) and detection limit of 3.2×10−6 mol L−1. The film morphology was investigated by SEM, EDX and AFM, and the electrochemical response was confirmed by EIS. The MIP film exhibited excellent selectivity for HCT, rapid response and good practicability. The sensor was successfully applied for direct and selective determination of HCT in dialysate and hemodialysis wastewater samples with recovery rates ranging from 97 % to 102 % based on the standard addition method. Swift, sensitive, and selective: A molecularly imprinted polymer‐based electrochemical sensor for direct determination of hydrochlorothiazide (HCT) was developed through electrochemical synthesis of the functional monomer (o‐PD) and the template molecule (HCT) using Plackett‐Burman design screening and central composite design. The MIP sensor shows rapid response with high selectivity for the detection of HCT.