Sensitive determination of chlorpyrifos using Ag/Cu alloy nanoparticles and graphene composite paste electrode

Design of Electrochemically Modified fMWCNT‐pencil Graphite Electrode Decorated with Cu and Ag Nanofilm and its Electrocatalytic Behavior Towards Imazethapyr

“…The unique chemical and physical properties of metal nanoparticles make it a better candidate as modifying material for development of electrochemical sensor. These properties can further improved by combining the two different metal nanoparticles as bimetallic nanoparticles . In present study, nanoparticles of Silver and copper were used for utilizing the bimetallic features in electrochemical sensing platform.…”

“…These nanoparticles were used in various electrochemical sensing and catalytic applications . The addition of AgNP with CuNP as bimetallic nanoparticle layer on MWCNTs have been attract considerable interest in surface modification because they provide high electrical conductivity, absorptivity, chemical stability, biocompatibility, large surface area that can offer more active sites and also provide extra roughness to the conductive sensing interface , , , . Thus bimetallization can further increase the electrocatalytic and sensing properties over the single metallic nanoparticles.…”

Electrochemical devices for the detection of priority pollutants listed in the EU water framework directive

“…A highly sensitive determination of chlorpyrifos (DP-CSV, LOD 0.0014 µg/L) was reported by Sreedhar et al [45] using a novel Ag/Cu alloy nanoparticle and graphene nanocomposite paste electrode. A glassy carbon electrode modified with multiwalled carbon nanotubes (MWCNT), polyaniline (PANI) and polypyrrole (PPY) was used for the determination of isoproturon at concentrations down to 0.1 µg/L by differential pulse anodic stripping voltammetric (DP-ASV) [46].…”

“…Almost all works described above allowed for the sensitive determination of different pesticides and adequately performed in water matrices [43,44,[45][46][47]. However, the selective detection of the corresponding target analyte was not assessed in most cases, considering that the electrode response was only evaluated in the presence of inorganic interferences, or organic pollutants with a very different electrochemical/ adsorption behavior.…”

A novel sensing layer based on metal–organic framework UiO-66 modified with TiO2–graphene oxide: application to rapid, sensitive and simultaneous determination of paraoxon and chlorpyrifos

“…4, the SWV exhibited two reduction peaks of POX and CPF at À0.45 and À1.35 V vs. Ag/AgCl which can be attributed to the electrochemical reduction of POX and CPF. 16,43 The GCEs modified using TiO 2 (T), graphene oxide (GO), UiO-66 and combinations of TiO 2 -graphene oxide (TGO), UiO-66-graphene oxide (GO@UiO-66) and UiO-66-graphene oxide-TiO 2 (TGO@UiO-66) were examined for detection of the prepared samples and their results are shown in Fig. 4.…”