A chemiluminescence method induced by microplasma jet for nitrites detection and the miniature detection system using smartphone

Cai, Yi; Han, Zhiwu; Li, Wei; Yao, Chuanhao; Wang, Jianhua; Zhao, Yong Qing

doi:10.1016/j.aca.2023.341339

Cited by 8 publications

(2 citation statements)

References 28 publications

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“…Various traditional nitrite detection methods such as spectrophotometry [ 5 ], chromatography [ 6 ], chemiluminescence [ 7 ], and capillary electrophoresis [ 8 ] have been employed. Most nitrite detection methods suffer from drawbacks like high cost, complex instrumentation, toxic reagent use, laborious sample preparation, and unsuitability for real-time analysis [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

An Electroanalytical Enzymeless α-Fe2O3-ZnO Hybrid Nanostructure-Based Sensor for Sensitive Quantification of Nitrite Ions

Ahmad,

Abdullah,

Rehman

et al. 2024

Nanomaterials

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Nitrite monitoring serves as a fundamental practice for protecting public health, preserving environmental quality, ensuring food safety, maintaining industrial safety standards, and optimizing agricultural practices. Although many nitrite sensing methods have been recently developed, the quantification of nitrite remains challenging due to sensitivity and selectivity limitations. In this context, we present the fabrication of enzymeless iron oxide nanoparticle-modified zinc oxide nanorod (α-Fe2O3-ZnO NR) hybrid nanostructure-based nitrite sensor fabrication. The α-Fe2O3-ZnO NR hybrid nanostructure was synthesized using a two-step hydrothermal method and characterized in detail utilizing x-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). These analyses confirm the successful synthesis of an α-Fe2O3-ZnO NR hybrid nanostructure, highlighting its morphology, purity, crystallinity, and elemental constituents. The α-Fe2O3-ZnO NR hybrid nanostructure was used to modify the SPCE (screen-printed carbon electrode) for enzymeless nitrite sensor fabrication. The voltammetric methods (i.e., cyclic voltammetry (CV) and differential pulse voltammetry (DPV)) were employed to explore the electrochemical characteristics of α-Fe2O3-ZnO NR/SPCE sensors for nitrite. Upon examination of the sensor’s electrochemical behavior across a range of nitrite concentrations (0 to 500 µM), it is evident that the α-Fe2O3-ZnO NR hybrid nanostructure shows an increased response with increasing nitrite concentration. The sensor demonstrates a linear response to nitrite concentrations up to 400 µM, a remarkable sensitivity of 18.10 µA µM−1 cm−2, and a notably low detection threshold of 0.16 µM. Furthermore, its exceptional selectivity, stability, and reproducibility make it an ideal tool for accurately measuring nitrite levels in serum, yielding reliable outcomes. This advancement heralds a significant step forward in the field of environmental monitoring, offering a potent solution for the precise assessment of nitrite pollution.

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Section: Introductionmentioning

confidence: 99%

An Electroanalytical Enzymeless α-Fe2O3-ZnO Hybrid Nanostructure-Based Sensor for Sensitive Quantification of Nitrite Ions

Ahmad,

Abdullah,

Rehman

et al. 2024

Nanomaterials

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show abstract

“…Numerous analytical methods have been developed for nitrite detection in several sample matrices, such as chromatography, 10,11 spectrophotometry, 12,13 uorescence, 14,15 colorimetry, 16,17 capillary electrophoresis, 18,19 surface-enhanced Raman scattering, 20,21 chemiluminescence, 22,23 and electrochemical sensors. 24,25 Nevertheless, most of the described nitrite detection techniques have limitations, such as hazardous chemical use, sophisticated instrumentation, laborious and complex sample preparation, high cost, and limited selectivity.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the analytical performance of two different electrochemical sensors based on a composite of gold nanorods with carbon nanomaterials and PEDOT:PSS for the sensitive detection of nitrite in processed meat products

Wahyuni,

Rahman,

Afifah

et al. 2024

RSC Adv.

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Controllable synthesis of cross-linked 3D ZnO nanosheet toward a nitrite electrochemical sensor

Song,

Cheng,

et al. 2024

Electrochimica Acta

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A chemiluminescence method induced by microplasma jet for nitrites detection and the miniature detection system using smartphone

Cited by 8 publications

References 28 publications

An Electroanalytical Enzymeless α-Fe2O3-ZnO Hybrid Nanostructure-Based Sensor for Sensitive Quantification of Nitrite Ions

An Electroanalytical Enzymeless α-Fe2O3-ZnO Hybrid Nanostructure-Based Sensor for Sensitive Quantification of Nitrite Ions

Comparison of the analytical performance of two different electrochemical sensors based on a composite of gold nanorods with carbon nanomaterials and PEDOT:PSS for the sensitive detection of nitrite in processed meat products

Controllable synthesis of cross-linked 3D ZnO nanosheet toward a nitrite electrochemical sensor

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