Cysteine combined with carbon black as support for electrodeposition of poly (1,8-Diaminonaphthalene): Application as sensing material for efficient determination of nitrite ions

Smartphone‐Assisted Electrochemical Sensor Based on Mg0.5Co2.5(PO4)2 and Carbon Black for Trace Bisphenol A Detection

“…As expected, the electronic transfer resistance decreased from 3753 Ω to 23 Ω after the modification of bare SPE which is about 163 times smaller. This decline is mainly ascribed to the improvement in electronic transfer, which is in good agreement with the CV measurements [30] …”

“…This decline is mainly ascribed to the improvement in electronic transfer, which is in good agreement with the CV measurements. [30] Electrochemical detection of BPA using Mg 0.5 Co 2.5 (PO 4 ) 2 / CB/SPE A preliminary investigation of the application of Mg 0.5 Co 2.5 (PO 4 ) 2 /CB/SPE as an electrochemical sensor for BPA detection was carried out in a solution of 0.1 m phosphate buffer solution (PBS) containing 100 μm of BPA using cyclic voltammetry with a scan rate of 50 mV s À 1 . The corresponding graphs are presented in Figure 5 showing a significant increase in BPA oxidation peak current of about 32 % and 55 % respectively on CB/SPE (red line) and Mg 0.5 Co 2.5 (PO 4 ) 2 /CB/SPE (blue line) compared to bare SPE (black line).…”

“…Indeed, the modification of the electrode with a suitable agent is a good strategy to enhance the sensitivity and the selectivity of the sensor. [27][28][29][30][31][32][33][34][35] Numerous nanomaterials have been developed based on conducting polymers, carbon nanostructures, metallic nanoparticles, or their combination for the electrochemical sensing of BPA, [36][37][38][39] and a wide range other applications. [40][41][42][43][44][45] Recently, multi walled carbon nanotubes were combined with CuFe 2 O 4 through a sol-gel method.…”

“…The performance of the electrochemical sensors is largely affected by the nature of the electrode surface. Indeed, the modification of the electrode with a suitable agent is a good strategy to enhance the sensitivity and the selectivity of the sensor [27–35] . Numerous nanomaterials have been developed based on conducting polymers, carbon nanostructures, metallic nanoparticles, or their combination for the electrochemical sensing of BPA, [36–39] and a wide range other applications [40–45] .…”

Advanced nanomaterials for Organic Compounds detection and Oxidation by Electrochemical methods with the Aid of Active Catalysts

“…According to their manuscript, the prepared catalyst delivers superior electrocatalytic activity toward the targeted reaction (oxidation of Bis-phenol-A) which yields a low limit of detection as high as 0.1 µM. In addition, Salhi, O et al [8] fabricated a poly-1.8-Diaminonaphtalene and cysteine modified black carbon electrode (Poly-1.8DAN/Cys/CB) for the determination of nitrite in real samples. So, the designed electrode yields outstanding electrocatalytic activity toward nitrite ions finding.…”