Modified 3D Graphene-Au as a Novel Sensing Layer for Direct and Sensitive Electrochemical Determination of Carbaryl Pesticide in Fruit, Vegetable, and Water Samples

Rahmani, Turaj; Bagheri, Hasan; Behbahani, Mohammad; Hajian, Ali; Afkhami, Abbas

doi:10.1007/s12161-018-1280-4

Cited by 86 publications

(28 citation statements)

References 53 publications

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“…Other examples of the use of gold-based electrodes, primarily nanosized gold on different supports, can be found, for example, gold nanoparticles/ethylenediamine-reduced graphene oxide for fenitrothion (LOD 6 × 10 −3 μM [ 71 ]; Au nanoparticles supported by reduced graphene oxide for diuron detection (2.23 μM [ 72 ]; 3D graphene-Au composite for detection of 1-naphthyl methylcarbamate (LOD 0.0012 μM [ 73 ]; methyl parathion detection using pillar[5]arene@AuNPs@reduced graphene oxide hybrids (LOD 0.001 μM [ 74 ]; Au-Pd/reduced graphene oxide nanocomposite for parathion detection (LOD 0.008 µM [ 75 ].…”

Section: Electrochemical Sensor For Water Contaminantsmentioning

confidence: 99%

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

Kanoun

Lazarević‐Pašti

Pašti

et al. 2021

Sensors

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Electrochemical sensors play a significant role in detecting chemical ions, molecules, and pathogens in water and other applications. These sensors are sensitive, portable, fast, inexpensive, and suitable for online and in-situ measurements compared to other methods. They can provide the detection for any compound that can undergo certain transformations within a potential window. It enables applications in multiple ion detection, mainly since these sensors are primarily non-specific. In this paper, we provide a survey of electrochemical sensors for the detection of water contaminants, i.e., pesticides, nitrate, nitrite, phosphorus, water hardeners, disinfectant, and other emergent contaminants (phenol, estrogen, gallic acid etc.). We focus on the influence of surface modification of the working electrodes by carbon nanomaterials, metallic nanostructures, imprinted polymers and evaluate the corresponding sensing performance. Especially for pesticides, which are challenging and need special care, we highlight biosensors, such as enzymatic sensors, immunobiosensor, aptasensors, and biomimetic sensors. We discuss the sensors’ overall performance, especially concerning real-sample performance and the capability for actual field application.

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Section: Electrochemical Sensor For Water Contaminantsmentioning

confidence: 99%

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

Kanoun

Lazarević‐Pašti

Pašti

et al. 2021

Sensors

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“…Three-dimensional (3D) graphene materials which can be assembled by graphene nanosheets, have improved physical and electrochemical properties when compared to graphene nanosheets [24][25][26]. In recent years, they have gained great attention because of their high specific surface area, good electron mobility, porous, and 3D-networked structure [27][28][29]. Graphene hydrogel (GH) is a 3D graphene material that can be prepared easily by hydrothermal reduction [30][31][32] and chemical reduction [33,34].…”

Section: Introductionmentioning

confidence: 99%

Electro-Oxidation and Simultaneous Determination of Indole-3-Acetic Acid and Salicylic Acid on Graphene Hydrogel Modified Electrode

Cao

Zhu

et al. 2019

Sensors

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A selective and sensitive electrochemical sensor was developed for simultaneous detection of phytohormones indole-3-acetic acid (IAA) and salicylic acid (SA). The sensing interface was fabricated on a porous, three-dimensional networked graphene hydrogel (GH) modified glassy carbon electrode (GCE). The electrocatalytic behavior of IAA and SA on the surface of the modified electrode (GH/GCE) was investigated by cyclic voltammetry and linear sweep voltammetry. Results show that the oxidation reactions of IAA and SA occur at different potentials, which enable their simultaneous detection at the sensing interface. Under optimal conditions, the GH/GCE exhibited good selectivity and stability and its response, unaffected by various interferents, was linear in the range of 4 to 200 µM of IAA and SA. The limit of detection (S/N = 3) achieved were 1.42 µM for IAA and 2.80 µM for SA. The sensor performance was validated by measuring for IAA and SA in real vegetable samples with satisfactory results.

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“…There are several methods for the determination of carbaryl such as differential pulse voltammetry (DPV) [5], linear sweep anodic stripping voltammetry [6], differential pulse voltammetry [7], colorimetry [8], chronoamperometry [9], fluorimetry [10], high-performance liquid chromatography [11], and gas chromatography [12]. Chromatographic methods are usually time-consuming, expensive and somewhat complicated.…”

Section: Figure 1 Structural Formula Of Carbarylmentioning

confidence: 99%

A Laser Reduced Graphene Oxide Grid Electrode for the Voltammetric Determination of Carbaryl

Saqib¹,

Dorozhko²,

Barek³

et al. 2021

Preprint

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Laser reduced graphene oxide (LRGO) on a PET substrate was prepared in one-step to obtain the LRGO grid electrode for sensitive carbaryl determination. The grid form results in a grid distribution of different electrochemically active zones affecting the electroactive substance diffusion towards to the electrode surface and increasing the electrochemical sensitivity for carbaryl determination. Carbaryl is electrochemically irreversibly oxidized by the secondary amine moiety of the molecule with the loss of one proton and one electron in the pH range from 5 to 7 by LSV on the LRGO grid electrode with a scan rate of 300 mV/s. Some interference of the juice matrix molecules did not significantly affect the LSV oxidation current of carbaryl on the LRGO grid electrode after adsorptive accumulation without applied potential. The LRGO grid electrode can be used for LSV determination of carbaryl in fruit juices in the concentration range from 0.25 to 128 mg/L with LOD of 0.1 mg/L by. The fabrication of the LRGO grid electrode opens up possibilities for further inexpensive monitoring of carbaryl in other fruit juices and fruits.

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Modified 3D Graphene-Au as a Novel Sensing Layer for Direct and Sensitive Electrochemical Determination of Carbaryl Pesticide in Fruit, Vegetable, and Water Samples

Cited by 86 publications

References 53 publications

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

Electro-Oxidation and Simultaneous Determination of Indole-3-Acetic Acid and Salicylic Acid on Graphene Hydrogel Modified Electrode

A Laser Reduced Graphene Oxide Grid Electrode for the Voltammetric Determination of Carbaryl

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