In 2020.0 ECOTOX ENVIRON SAFE published article about PHENYL-UREA HERBICIDES; PLATINUM NANOPARTICLES; CARBON NANOTUBES; ELECTROCHEMICAL SENSOR; GRAPHITE ELECTRODE; WATER SAMPLES; CHITOSAN; PERFORMANCE; PESTICIDES; OXIDATION in [Morawski, Franciele de Matos; Winiarski, Joao Paulo; Parize, Alexandre Luis; Jost, Cristiane Luisa] Univ Fed Santa Catarina, Dept Quim, Ampere Lab Plataformas Eletroquim, BR-88040900 Florianopolis, SC, Brazil; [Maduro de Campos, Carlos Eduardo] Univ Fed Santa Catarina, Dept Fis, BR-88040900 Florianopolis, SC, Brazil in 2020.0, Cited 60.0. The Name is 1-Phenylurea. Through research, I have a further understanding and discovery of 64-10-8. Recommanded Product: 1-Phenylurea
Phenylurea herbicides are persistent contaminants, which leads their transport to the surface and ground waters, affecting human and aquatic organisms. Different analytical methods have been reported for the detection of phenylureas; however, several of them are expensive, time-consuming, and require complex pretreatment steps. Here, we show a simple method for the simultaneous electrochemical determination of two phenylurea herbicides by differential pulse adsorptive stripping voltammetry (DPAdSV) using a modified platinum/chitosan electrode. The one-step synthesized platinum/chitosan PtNPs/CS was successfully characterized by TEM, XRPD, and FT-IR, and applied through the sensing platform designated as PtNPs/CS/GCE. This bio-based modified electrode is proposed for the first time for the individual and/or simultaneous electrochemical detection of the phenylurea herbicides diuron and isoproturon compounds extensively used worldwide that present a very similar chemical structure. Electrochemical and interfacial characteristics of the modified electrode were evaluated by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). It was found that the oxidation mechanism of diuron and isoproturon occurs in two different pathways, with a peak-to-peak definition of ca. 0.15 V. Under differential pulse adsorptive stripping voltammetry (DPAdSV) optimized conditions, the limit of detection (LOD) was estimated as 7 mu g L-1 for isoproturon and 20 mu g L-1 for diumn (E-d = +0.8 V; t(d) = 100 s). The proposed method was successfully applied to the determination of both analytes in river water samples, at three different levels, with a recovery range of 90-110%. The employment of the bio-based sensing platform PtNPs/CS/GCE allows a novel and easy analytical method to the multi-component phenylurea herbicides detection.
Recommanded Product: 1-Phenylurea. About 1-Phenylurea, If you have any questions, you can contact Morawski, FD; Winiarski, JP; de Campos, CEM; Parize, AL; Jost, CL or concate me.
Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem