Influence of temperature variation on spinel-structure MgFe2O4 anchored on reduced graphene oxide for electrochemical detection of 4-cyanophenol

Synergy of the LaVO4/h-BN Nanocomposite: A Highly Active Electrocatalyst for the Rapid Analysis of Carbendazim

“…The direct relationship is validated by the calibration curve in Figure b with the regression correlation coefficient ( R 2 ) of 0.991. The proposed sensor shows confirmations of remarkable electrocatalytic activity with the attainment of values as low as a detection limit of 0.5 nM and wide linear responses of 0.001–89 μM, and values are calculated using the standard formula − The evaluation of the analytical features of the LaV/h-BN-based electrochemical platform (Table ) signifies its efficient performance compared to those of previously reported studies, where, from the i – t curve, it is obtained to be 5 s on average for each and every addition of the analyte. The improved performance of the sensor can be recognized in accordance with the synergistic interactions between LaV and h-BN, the creation of electroactive edge sites, better electronic conductivity, and morphological encapsulation supporting electron transfer.…”

Fabrication of Novel and Potential Selective 4-Cyanophenol Chemical Sensor Probe Based on Cu-Doped Gd2O3 Nanofiber Materials Modified PEDOT:PSS Polymer Mixtures with Au/µ-Chip for Effective Monitoring of Environmental Contaminants from Various Water Samples

“…The higher sensitivity of CGO/PEDOT:PSS coated chip could attribute to the good absorption (porous surfaces fabricated with coating), adsorption ability, high catalytic activity and good bio-compatibility of the CGO/PEDOT:PSS/Au/μ-Chip. The CGO/PEDOT:PSS/Au/μ-Chip assembly exhibits very high sensitivity towards 4-CP and extremely lower LOD than other 4-CP sensors, which is presented in Table 2 [ 13 , 20 , 21 ]. The CGO/PEDOT:PSS/Au/μ-Chip sensor is showed an excellent stability and reliability as well.…”

“…United States Environmental Protection Agency (US EPA) also declared this 4-CP as a major environmental pollutant [ 9 , 10 ]. 4-CP is also commonly used as an antifungal [ 11 ], insecticidal [ 12 ] agents and its adverse effect has been studied by researchers [ 8 , 13 , 14 ]. Inhalation of 4-CP can harm the central nervous system and disturb the cardiac systems [ 15 ].…”

“…4-CP might get metabolized in the human body yielding toxic cyanide which can cause severe respiratory problems [ 16 , 17 ]. The cyanide formation might also cause headache, dizziness, and unconsciousness, and occasionally even death [ 13 ]. Upon contact, it causes eye, nose, skin, and respiratory system irritation.…”

“…Therefore, an effective determination of 4-CP becomes necessary [ 19 ]. Several techniques have been used to detect 4-CP such as UV-Vis spectroscopy, gas chromatography, and capillary electrophoresis [ 13 , 20 , 21 ]. However, the electrochemical techniques are advantageous in terms of sensitivity, low-cost, response-time, and pretreatment of samples not required so suitable for on-field detection [ 22 , 23 , 24 , 25 , 26 ].…”