A novel electrochemical strategy for determination of vitamin B12 by Co(I/II) redox pair monitoring with boron-doped diamond electrode

Pereira, Daniel; Santana, Edson Roberto; Piovesan, Jamille V.; Spinelli, Almir

doi:10.1016/j.diamond.2020.107793

Cited by 28 publications

(9 citation statements)

References 28 publications

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“…In a study of dietary supplements, the determination of vitamin B12 was done through the application of cyclic voltammetry with a boron-doped diamond electrode wherein the determination of the redox pair Co + →Co 2+ was monitored. The corresponding voltammogram obtained at pH = 5.0 showed two oxidation peaks for the pairs Co + →Co 2+ and Co 2+ →Co 3+ with potentials −0.74 V and +0.18 V, respectively, and two reduction peaks for the pairs Co 3+ →Co 2+ και Co 2+ →Co + with potentials −0.12 V and −0.75 V, respectively [ 192 ]. All relevant analytical figures of merit are being summarized in Table 2 .…”

Section: Vitamin Analysis Using Electroanalytical Techniquesmentioning

confidence: 99%

Different Aspects of the Voltammetric Detection of Vitamins: A Review

Kiamiloglou,

Girousi

2023

Biosensors

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Vitamins comprise a group of organic chemical compounds that contribute significantly to the normal functioning of living organisms. Although they are biosynthesized in living organisms, some are also obtained from the diet to meet the needs of organisms, which is why they are characterized as essential chemical compounds. The lack, or low concentrations, of vitamins in the human body causes the development of metabolic dysfunctions, and for this reason their daily intake with food or as supplements, as well as the control of their levels, are necessary. The determination of vitamins is mainly accomplished by using analytical methods, such as chromatographic, spectroscopic, and spectrometric methods, while studies are carried out to develop new and faster methodologies and techniques for their analysis such as electroanalytical methods, the most common of which are voltammetry methods. In this work, a study is reported that was carried out on the determination of vitamins using both electroanalytical techniques, the common significant of which is the voltammetry technique that has been developed in recent years. Specifically, the present review presents a detailed bibliographic survey including, but not limited to, both electrode surfaces that have been modified with nanomaterials and serve as (bio)sensors as well as electrochemical detectors applied in the determination of vitamins.

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Section: Vitamin Analysis Using Electroanalytical Techniquesmentioning

confidence: 99%

Different Aspects of the Voltammetric Detection of Vitamins: A Review

Kiamiloglou,

Girousi

2023

Biosensors

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“…S4b, ESI †), which were generally considered to be Co II /Co I . [68][69][70] The LUMO of compounds 1 and 2 were mainly distributed on cobalt ions, and was analysed used DFT calculations. The process of electron transfer may be that the excited photoelectrons from [Ru(bpy) 3 ]Cl 2 transferred to the Co site by the internal transfer of the catalyst, and further reduced the Co 2+ to Co + .…”

Section: Possible Photocatalytic Mechanismmentioning

confidence: 99%

[W₁₀O₃₂]⁴⁻-based POMOFs with different nuclear cobalt clusters for photoreduction of CO₂ to produce syngas

et al. 2023

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“…208,211,212 BDD sensors have been demonstrated in the early detection of influenza 200 and other related applications. [213][214][215] Carbon paste electrodes are the result of combining graphene powder with insoluble organic binders. This type of electrodes exhibit fast surface renewal, low background current, polarizability, modifiable structure and high reproducibility, although the organic solvent can affect the organic binder, decreasing the overall electrode´s performance (Fig.…”

Section: Electrochemical Nanosensorsmentioning

confidence: 99%