A glassy carbon electrode modified with the nickel(II)-bis(1,10-phenanthroline) complex and multi-walled carbon nanotubes, and its use as a sensor for ascorbic acid

Liu, Xin; Li, Xi; Xiong, Yan; Huang, Qimei; Li, Xiaoyü; Dong, Yaping; Liu, Peng; Zhang, Chaocan

doi:10.1007/s00604-013-1058-8

Cited by 19 publications

(7 citation statements)

References 35 publications

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“…Single-walled carbon nanotubes were obtained from Shenzhen Nanotech Port Co., Ltd., (Shenzhen, China). The SWCNTs suspension (0.1 mg·mL −1 ) was prepared as described previously [ 26 ]. In brief, SWCNTs were treated using a mixture of concentrated H 2 SO 4 and HNO 3 solution for 3 h, and then filtered and washed with water until the pH was 7.0.…”

Section: Methodsmentioning

confidence: 99%

The Simultaneous Electrochemical Detection of Catechol and Hydroquinone with [Cu(Sal-β-Ala)(3,5-DMPz)2]/SWCNTs/GCE

Alshahrani

Luo

et al. 2014

Sensors

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A glassy carbon electrode was modified with a copper(II) complex [Cu(Sal-β-Ala) (3,5-DMPz)2] (Sal = salicylaldehyde, β-Ala = β-alanine, 3,5-DMPz = 3,5-dimethylpyrazole) and single-walled carbon nanotubes (SWCNTs). The modified electrode was used to detect catechol (CT) and hydroquinone (HQ) and exhibited good electrocatalytic activities toward the oxidation of CT and HQ. The peak currents were linear with the CT and HQ concentrations over the range of 5–215 μmol·L−1 and 5–370 μmol·L−1 with corresponding detection limits of 3.5 μmol·L−1 and 1.46 μmol·L−1 (S/N = 3) respectively. Moreover, the modified electrode exhibited good sensitivity, stability and reproducibility for the determination of CT and HQ, indicating the promising applications of the modified electrode in real sample analysis.

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Section: Methodsmentioning

confidence: 99%

The Simultaneous Electrochemical Detection of Catechol and Hydroquinone with [Cu(Sal-β-Ala)(3,5-DMPz)2]/SWCNTs/GCE

Alshahrani

Luo

et al. 2014

Sensors

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“…This because it is not only the most common anti‐oxidant, but is also present in mammalian brain along with several neurotransmitters, so its determination is also crucial in the medical field. Electrochemical methods for its determination were recently reviewed , nevertheless many others were proposed since then . Many of these methods allow the determination of ascorbic acid in the presence of several other analytes, more commonly uric acid and dopamine since they are co‐existing in biological matrixes and they are oxidized at almost the same potential at traditional electrode materials.…”

Section: Water Soluble Vitaminsmentioning

confidence: 99%

Recent Advances in Electroanalysis of Vitamins

Brunetti

2016

Electroanalysis

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Vitamins are a chemically heterogeneous group of compounds known as essential for the normal functioning of the organic metabolism. Their decrease in humans can lead to several diseases and not being produced by the body, they need to be obtained from dietary sources or supplements. For these reasons, their determination in food, pharmaceutical and clinical samples is crucial. This article reviews key advances in electrochemical measurements of vitamins over the past decade. Particular attention is given to papers proving applicability to real samples analysis. The technical features of the proposed sensors are presented and discussed along with their analytical performances. Future trends and challenges are also addressed.

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“…3 Electrochemical techniques are the most common and easy approach to the quantitative detection of small biomolecules owing to their high sensitivity, fast response and low expense. Numerous materials, such as noble metal nanoparticles, 4 metal oxide, 5,6 CdS quantum dots, 7 and carbon materials 8,9 have been used to modify electrodes to realize the electrochemical detection of AA. Because the electrochemical oxidation peak potentials for DA, UA and AA are close, research has focused on how to selectively detect of these compounds effectively.…”

Section: Introductionmentioning

confidence: 99%

A Glassy Carbon Electrode Modified with Molybdenite and Ag Nanoparticle Composite for Selectively Sensing of Ascorbic Acid

et al. 2019

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Molybdenite (MLN) was physically co-adsorbed with Ag nanoparticles (Ag) on a glassy carbon electrode (GCE) for selectively sensing of ascorbic acid (AA). The composite was characterized with a scan electron microscope, a hightemperature confocal laser scanning microscope, an X-ray diffractometer, an X-ray fluorescence analyzer and electrochemical methods. The prepared MLN/Ag-GCE sensor exhibited good properties including a linear range from 3.0 × 10-5 to 1.0 × 10-3 M toward AA, a low detection limit of 1.5 × 10-5 M, good selectivity, excellent reproducibility, and good stability. The synergistic effect between MLN and Ag nanoparticles results in an enhancement of the electrocatalytic activity for molybdenite.

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A glassy carbon electrode modified with the nickel(II)-bis(1,10-phenanthroline) complex and multi-walled carbon nanotubes, and its use as a sensor for ascorbic acid

Cited by 19 publications

References 35 publications

The Simultaneous Electrochemical Detection of Catechol and Hydroquinone with [Cu(Sal-β-Ala)(3,5-DMPz)2]/SWCNTs/GCE

The Simultaneous Electrochemical Detection of Catechol and Hydroquinone with [Cu(Sal-β-Ala)(3,5-DMPz)2]/SWCNTs/GCE

Recent Advances in Electroanalysis of Vitamins

A Glassy Carbon Electrode Modified with Molybdenite and Ag Nanoparticle Composite for Selectively Sensing of Ascorbic Acid

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