Recent advances in sensors for electrochemical analysis of nitrate in food and environmental matrices

Jiang, Chunbo; Liu, Yang

doi:10.1039/d0an00823k

Cited by 52 publications

(35 citation statements)

References 85 publications

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“…When nitrates reach the food chain from groundwater, surface water, and other sources, they can negatively affect the human body. If infants consume too much nitrate via their drinking water, they may develop “blue baby” disease or methemoglobinemia, which is caused by the endogenous conversion of nitrate to nitrite [ 10 , 35 ].…”

Section: Water Contaminantsmentioning

confidence: 99%

“…Several reviews report on electrochemical sensing for water quality analysis [ 8 , 9 ]. Some of them focus on one type or a group of contaminants, such as the advances in nitrate monitoring in the environment and food products [ 10 ], the detection of phosphate -based on cobalt by potentiometric method and the progress of the development of electrochemical sensors for heavy metal ions [ 11 , 12 , 13 ]. Other reviews have combined several types of analytes, such as biomolecules (glucose, uric acid, dopamine, and ascorbic acid), pollutants (nitrobenzene, hydrazine, pesticides and nitrophenols), and heavy metal ions [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

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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: Water Contaminantsmentioning

confidence: 99%

Section: Introductionmentioning

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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“…Poly [Ni(salcn(Bu))] modified electrodes are most stable in CH 2 Cl 2 . Frequently studied reducing agents were selected for investigation due to their biological functions or environmental impact (catechol, ascorbic acid and NO 2 − ) [ 39 , 40 , 41 , 42 ]. The analysis of the electrocatalysis process was performed with ferrocene as a reducing agent with well-known and stable electrochemical characteristics.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic Properties of Ni(II) Schiff Base Complex Polymer Films

et al. 2021

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Platinum electrodes were modified with polymers of the (±)-trans-N,N′-bis(salicylidene)-1,2-cyclohexanediaminenickel(II) ([Ni(salcn)]) and (±)-trans-N,N′-bis(3,3′-tert-Bu-salicylidene)-1,2-cyclohexanediaminenickel(II) ([Ni(salcn(Bu))]) complexes to study their electrocatalytic and electroanalytical properties. Poly[Ni(salcn)] and poly[Ni(salcn(Bu))]) modified electrodes catalyze the oxidation of catechol, aspartic acid and NO2−. In the case of poly[Ni(salcn)] modified electrodes, the electrocatalysis process depends on the electroactive surface coverage. The films with low electroactive surface coverage are only a barrier in the path of the reducer to the electrode surface. The films with more electroactive surface coverage ensure both electrocatalysis inside the film and oxidation of the reducer directly on the electrode surface. In the films with the most electroactive surface coverage, electrocatalysis occurs only at the polymer–solution interface. The analysis was based on cyclic voltammetry, EQCM (electrochemical quartz crystal microbalance) and rotating disc electrode method.

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“…The detection limit was determined to be 11.6 μM, which is much lower than the legal limit in water and is comparable to many other NO 3 − sensors found in the literature. 47,48 Figure 10 shows the (a) detection limits, (b) sensitivities, and (c) peak potentials observed using copper electrodes fabricated under different BZ reaction conditions. Except for the electrode synthesized under Ox-CeBZ conditions, all the other electrodes exhibited improved performances relative to the unmodified copper wire.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical Preparation of Copper Nanoparticles in an Oscillatory Belousov–Zhabotinsky Medium

Tang

Wang

2022

J. Phys. Chem. C

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The Belousov−Zhabotinsky (BZ) oscillator was exploited in this study to manifest the formation of copper nanoparticles, which were synthesized through potentiostatic reduction of copper ions. The presence of copper ions in the BZ reaction led to the development of complex oscillations when the initial concentration of copper ions was increased to above a threshold level, in which period-doubled and mixed-mode oscillations were developed. Experiments showed that as a result of changing the BZ oscillator, copper deposits with different morphologies such as triangles, cubes, and tetrahedrons were formed. The potentiostatic reduction of copper ions also exhibited an oscillatory behavior with a frequency that was nearly the same as the BZ oscillations. The thus-fabricated copper deposit demonstrated great activity towards the electrochemical reduction of NO 3 − , in which the detection limit reached as low as 11.6 μM. Characterization with cyclic voltammetry indicates interactions between copper ions and the malonic acid substrate.

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Recent advances in sensors for electrochemical analysis of nitrate in food and environmental matrices

Abstract: Electrochemical determination of nitrate: an overview from the perspective of sample matrices.

Cited by 52 publications

References 85 publications

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

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

Electrocatalytic Properties of Ni(II) Schiff Base Complex Polymer Films

Electrochemical Preparation of Copper Nanoparticles in an Oscillatory Belousov–Zhabotinsky Medium

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