Electrochemical sensor sensitive detection of chloramphenicol based on ionic-liquid-assisted synthesis of de-layered molybdenum disulfide/graphene oxide nanocomposites

Enhancing the chloramphenicol sensing performance of Cu–MoS2 nanocomposite-based electrochemical nanosensors: roles of phase composition and copper loading amount

“…This is consistent with many previous reports for the electrochemical reduction process of CAP occurring at the electrode surface. 38,[43][44][45][46] In both cases, with and without the presence of CAP, the reduction peak at around À0.4 V to À0.5 V could be ascribed to the irreversible reduction of residual hydroxyl or other functional groups on the commercial SPE surface. 46 R-NO 2 + 4e…”

Scalable Electrochemical Synthesis of Novel Biogenic Silver Nanoparticles and Its Application to High-Sensitive Detection of 4-Nitrophenol in Aqueous System

“…In contrast, for pure AgNPs-SPE, AgNPs which were stabilized Advances in Polymer Technology by BH 4 are only absorbed physically on the SPE surface without bonding agents. More importantly, biogenic AgNP-SPE is able to easily and strongly adsorb the analytes such as ions, chemical compounds due to the conjugation effect and electrostatic interaction of biomolecules, along with that the oxygen functional groups can improve the electrocatalytic activity of the synthesized electrode [23]. These results suggest that the biogenic AgNPs-SPE will be an ideal candidate for green electrochemical sensors in a variety of environmental monitoring and biomedical applications.…”

Past and Present of Electrochemical Sensors and Methods for Amphenicol Antibiotic Analysis

“…Despite the fact that at most reported electrodes CAP electrochemistry followed the same pathway [ 50 , 58 , 60 , 61 , 62 , 65 , 66 , 67 , 74 , 83 , 84 , 89 , 93 , 94 , 97 , 110 , 111 , 113 , 115 ], the corresponding signals were shifted within some limits of about 0.200–0.300 V as can be observed from Figure 3 . On the other hand, the peak current variation with the scan rate emphasized that at some electrodes CAP reduction was diffusion controlled [ 5 , 50 , 57 , 60 , 61 , 62 , 74 , 84 , 89 , 90 , 91 , 110 , 111 , 112 , 113 ], whereas in other cases the electrode process was governed by the CAP adsorption on the sensor surface [ 55 , 65 , 66 , 67 , 72 , 83 , 87 , 94 , 97 , 105 , ...…”

“…With very few exceptions, the reduction signal C1 was exploited for CAP electrochemical quantification [ 80 ]. Investigation of the pH influence on this signal emphasized that the highest peak currents were usually obtained in PBS pH 7.00 [ 50 , 56 , 57 , 58 , 61 , 65 , 66 , 67 , 70 , 80 , 83 , 84 , 91 , 92 , 93 , 110 , 111 , 112 , 113 ] or 7.40 [ 55 , 62 , 74 , 105 , 107 ], but depending on the employed working electrode somewhat lower (BRB pH 5.00 at PGE [ 5 ]) or higher (pH 8.00 at Pt-Pd NCs/rGO/GCE [ 68 ]) values were established to be optimum. This observation was correlated with CAP pKa value (5.52) [ 48 , 92 ] and with the fact that CAP is easily hydrolyzed in both acidic and alkaline media [ 92 , 112 ].…”