[PDF] Top 20 A Graphene-Based Electrochemical Sensor for Sensitive Detection of Vanillin

... where Ep is the peak potential (V vs. SCE), Eθ’ is the formal potential (V vs. SCE), R is the universal gas constant (8.314 J K −1 mol −1 ), T is the temperature (K), α (alpha) is the charge transfer coefficient for the ... See full document

... - graphene (EMDG) composite was used in the construction of a sensor, which showed strong electrocatalytic activity to the oxidation of vanillin in neutral ...solutions. Vanillin produces an ... See full document

... The standard addition technique was applied to the apple juice samples. The regression equation was y (µA) = 63.071x (µM) + 10.7148 for QR. According to the results, there was no interference from matrix components. The ... See full document

... highly sensitive electrode based on graphene oxide and functionalized multiwall carbon nanotube hybrid composite as coated on glassy carbon electrode (GCE) for the electrochemical rutin ...of ... See full document

... GCE, the GO/GCE and the AgNPs/GO/GCE before and after the addition of TSGF (0.1 mM) in acetate buffer (0.1 M, pH 4.5) were characterized via CV (scan rate: 50 mV/s). Before the addition of TSGF, the bare GCE and GO/GCE ... See full document

... fabricate electrochemical sensors. Furthermore, many graphene-supported alloys, which show high electrocatalytic activities and selectivities for applications in electrochemical sensing, have been ... See full document

... A CHI 440A electrochemical workstation was used for the electrochemical assays. A traditional triple-electrode configuration was used throughout the tests, and it consisted of a glassy carbon electrode ... See full document

... ion detection, a variety of electrode surface modified materials have been explored and ...incorporate graphene (GN) on the working electrode due to its high specific surface area, outstanding electron ... See full document

... Graphene, a single layer of sp 2 -hybrirdized carbon atoms packed in a honeycomb crystal lattice, has attracted considerable attention in recent years due to high specific surface area, extraordinary electronic ... See full document

... of graphene is quite different from that of Au ...one electrochemical sensor is also influenced by the supporting electrolyte solution used for the ... See full document

... 660E electrochemical workstation ((Shanghai CH Instruments, China) was used to perform all the cyclic cyclic voltamograms (CVs) and i-t curves experiments with a conventional three-electrode system, which included ... See full document

... atoms, graphene has recently attracted tremendous attention due to its unique thermal, mechanical and electrical properties ...example, graphene can be used as electrode modified material for construction ... See full document

... quick. Based on these results, the average surface coverage of the porphyrin molecule on RGO surface is ...whole electrochemical examination, it is found that the TCPP-RGO modified GC electrode be overly ... See full document

... reduced graphene oxide nanosheets (rGONS) (rGONS-Ag) are synthesized and developed for the sensitive detection of ortho-Nitrophenol (o-NP) using electrochemical ...and electrochemical ... See full document

... and sensitive biosensing methods for rapid detection of salmonella, including SPR [10], field effect transistor (FET) [11], fluorescence [1], magnetoelastic biosensor [12], capacitive immunosensor [13], ... See full document

... acid sensor by electrodeposition of Co NPs on ...amplified electrochemical detection of the metal deposits, and 3) the conductivity properties of nanoparticles at nanoscale dimensions that let for ... See full document

... remained the same. These phenomena could be attributed to the excellent conductivity and large specific surface area of ERGO. However, the anodic and cathodic peaks almost completely disappeared in the Cu-MOFs/GCE (curve ... See full document

... A sensitive electrochemical sensor was fabricated for selective detection of nitric oxide (NO) based on electrochemically reduced graphene (ErGO)-polyaniline (PANI)-gold ... See full document

... lower detection limit of 0.4 µM (S/N=3). Furthermore, the fabricated sensor was successfully applied to the detection of phenol in an oilfield wastewater sample with satisfactory ... See full document

... low detection limit, which makes it suitable for the determination of DA in the presence of high concentration of ...proposed sensor was applied for the determination of DA in real samples with satisfactory ... See full document