An electrochemical nanosensor for simultaneous determination of hydroxylamine and nitrite using oxadiazole self-assembled on silver nanoparticle-modified glassy carbon electrode

Hajisafari, Mahmoud; Nasirizadeh, Navid

doi:10.1007/s11581-016-1962-0

Cited by 14 publications

(8 citation statements)

References 38 publications

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“…During this approach, the applied potential (constant, ramped, or pulsed), current density, precursor concentration, and deposition time are key factors in controlling particle size, shape, and homogeneity over the active sensing surface. Electrodeposition can be performed by immersing the electrode substrate (disc or 3D electrodes) into the silver salt solution [ 75 ]. In addition, electrodeposition can be carried out from various background electrolytes such as acetic acid(AcOH)/NH 3 buffer [ 76 ], H 2 SO 4 [ 77 ], HNO 3 [ 78 ], KNO 3 [ 79 ] and phosphate buffer solution (PBS) [ 80 ].…”

Section: General Methods For the Synthesis Of Silver Nanoparticlesmentioning

confidence: 99%

“…Since the main focus of this work was oriented towards a simple, environmentally friendly approach to obtain particles with enhanced antibacterial activity, no detailed insights into the nitrite sensing mechanism nor LOD value were provided. Hajisafari and Nasirizadeh [ 75 ] proposed a voltammetric sensor for simultaneous quantification of hydroxylamine and nitrite fabricated by decorating the GCE with electrochemically synthesized AgNPs. First, rectangular-shaped particles were prepared by electrodeposition from an acidic 1 mM AgNO 3 solution at a continuous potential cycling from −0.7 V to 1.9 V, and a sweep rate of 80 mV s −1 in 7 cycles.…”

Section: Application Of Silver Nanoparticles In Voltammetric and Ampe...mentioning

confidence: 99%

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The Role of Silver Nanoparticles in Electrochemical Sensors for Aquatic Environmental Analysis

Ivanišević

2023

Sensors

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With rapidly increasing environmental pollution, there is an urgent need for the development of fast, low-cost, and effective sensing devices for the detection of various organic and inorganic substances. Silver nanoparticles (AgNPs) are well known for their superior optoelectronic and physicochemical properties, and have, therefore, attracted a great deal of interest in the sensor arena. The introduction of AgNPs onto the surface of two-dimensional (2D) structures, incorporation into conductive polymers, or within three-dimensional (3D) nanohybrid architectures is a common strategy to fabricate novel platforms with improved chemical and physical properties for analyte sensing. In the first section of this review, the main wet chemical reduction approaches for the successful synthesis of functional AgNPs for electrochemical sensing applications are discussed. Then, a brief section on the sensing principles of voltammetric and amperometric sensors is given. The current utilization of silver nanoparticles and silver-based composite nanomaterials for the fabrication of voltammetric and amperometric sensors as novel platforms for the detection of environmental pollutants in water matrices is summarized. Finally, the current challenges and future directions for the nanosilver-based electrochemical sensing of environmental pollutants are outlined.

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Section: General Methods For the Synthesis Of Silver Nanoparticlesmentioning

confidence: 99%

Section: Application Of Silver Nanoparticles In Voltammetric and Ampe...mentioning

confidence: 99%

The Role of Silver Nanoparticles in Electrochemical Sensors for Aquatic Environmental Analysis

Ivanišević

2023

Sensors

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“…Both hydroxylamine (HA) and nitrite ion act as two important environmental pollutants [1]. Environmental pollution is causing serious health problems for humans, and their quantification is still a big challenge.…”

Section: Introductionmentioning

confidence: 99%

“…4, pp. 5-13 carbon electrode; it has been applied to the determination of HA and nitrite in water samples with acceptable results [1]. In the paper [4] the analytical method is spectrophotometric.…”

Section: Introductionmentioning

confidence: 99%

Kinetic Spectrophotometric Determination of Hydroxylamine and Nitrite Ion in a Mixture by Their Reactions with Neutral Red

Данилина¹,

Buskina²

2017

Chem

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Kinetic determination of hydroxylamine in soils by the initial rate method is based upon the reaction of neutral red with the nitrite ion, produced by oxidation of hydroxylamine with iodate in acidic media. The optimal conditions for determination are as follows: 0.3 mol L-1 H 2 SO 4 , 0.024 mol L-1 KIO 3 , 6.92×10-5 mol L-1 neutral red. Hydroxylamine can also be determined in mixtures with nitrite ion, if the nitrite content has been found separately at the same conditions without iodate. The calibration graphs are linear in the range (3-27) μmol L-1 of NH 2 OH and (4-46) μmol L-1 of NO 2-. The reproducibility errors are 3.3 % and 1.8%, the relative errors of determination prove to be 2.6 % and 2.1 %, for hydroxylamine and nitrite ion, respectively.

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“…To enhance the sensitivity, large numbers of noble-metal-modified electrodes have been developed. − Especially, silver nanomaterials are preferred due to their excellent conductivity and cheap and available reagents. However, silver-based materials suffer from the problem of degradation of catalytic activity by incident agglomeration. − Accordingly, the development of simple methods to prepare silver nanoparticles with high dispersion and high stability is an effective way to address the problem.…”

mentioning

confidence: 99%

Self-Calibrating Electrochemical Sensors Based on Uniformly Dispersed Ag Nanoclusters in Nitrogen-Doped Carbon Sheets for Determination of Nitrite

Yin

Zhang

Dong

et al. 2022

ACS Appl. Nano Mater.

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In this work, in situ confinement polymerization was developed for the formation of silver nanoclusters (AgNCs) homogeneously distributed on nitrogen-doped carbon (NCS) utilizing N-vinyl functionalized imidazolium ionic liquids (ILs) as stabilizers and carbon precursors. The fabricated AgNC@NCSs exhibited excellent electrochemical and catalytic properties due to their controlled structure and morphology, the unique layered structure of the carbon carriers, and the confinement effect. The AgNC@NCS material was further fabricated for a printing electrode, which also acted as an internal reference for ratiometric and accurate detection. Nitrite was used as a target to verify the feasibility of self-calibrating detection at the AgNC@NCS printing electrode. The present electrochemical sensor demonstrated superior nitrite sensing characteristics, accompanied by a wide linear range (1.12–1400 μM), low detection limit (0.38 μM), high stability, and strong anti-interference ability. Importantly, high reliability of this self-calibrating detection was obtained for nitrate determination in food samples. Our work provides an efficient strategy for the design of self-calibrating electrodes in the area of electrochemical sensing.

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An electrochemical nanosensor for simultaneous determination of hydroxylamine and nitrite using oxadiazole self-assembled on silver nanoparticle-modified glassy carbon electrode

Cited by 14 publications

References 38 publications

The Role of Silver Nanoparticles in Electrochemical Sensors for Aquatic Environmental Analysis

The Role of Silver Nanoparticles in Electrochemical Sensors for Aquatic Environmental Analysis

Kinetic Spectrophotometric Determination of Hydroxylamine and Nitrite Ion in a Mixture by Their Reactions with Neutral Red

Self-Calibrating Electrochemical Sensors Based on Uniformly Dispersed Ag Nanoclusters in Nitrogen-Doped Carbon Sheets for Determination of Nitrite

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