Microelectrodes based on porphyrins for the determination of ascorbic acid in pharmaceutical samples and beverages

Staden, Raluca‐Ioana Stefan‐van; Balasoiu, Simona Cornelia; Staden, Jacobus Frederick van; Radu, Gabriel Lucian

doi:10.1142/s1088424612500794

Cited by 6 publications

(2 citation statements)

References 20 publications

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“…Differential pulse voltammetry has also been applied to pharmaceutical analysis using molded carbon paste electrodes with porphyrins. This combination has given low detection limits to the method (up to 1.1 × 10 −14 mol/L) [ 123 ].…”

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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“…A number of macrocyclic compounds (porphyrins, phthalocyanins) are suitable for attributing specific reactivity of sensing electrodes. Stefan-van Staden et al have used different porphyrins for the design of carbon paste and diamond paste-based microelectrodes, which were employed for the determination of AA in pharmaceutical (Supradyn, Vitamin C tablets) and beverage (Prigat) samples using differential pulse voltammetry [ 52 ]. The researchers pointed out that the interference of dopamine in the response of most of the microelectrodes made their utilization for the assay of AA in biological samples not possible.…”

Section: Electrochemical Microsensors For Ascorbic Acid Determinationmentioning

confidence: 99%

A Review on Electrochemical Microsensors for Ascorbic Acid Detection: Clinical, Pharmaceutical, and Food Safety Applications

2022

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Nowadays, micro-sized sensors have become a hot topic in electroanalysis. Because of their excellent analytical features, microelectrodes are well-accepted tools for clinical, pharmaceutical, food safety, and environmental applications. In this brief review, we highlight the state-of-art electrochemical non-enzymatic microsensors for quantitative detection of ascorbic acid (also known as vitamin C). Ascorbic acid is a naturally occurring water-soluble organic compound with antioxidant properties and its quantitative determination in biological fluids, foods, cosmetics, etc., using electrochemical microsensors is of wide interest. Various electrochemical techniques have been applied to detect ascorbic acid with extremely high sensitivity, selectivity, reproducibility, and reliability, and apply to in vivo measurements. This review paper aims to give readers a clear view of advances in areas of electrode modification, successful strategies for signal amplification, and miniaturization techniques used in the electroanalytical devices for ascorbic acid. In conclusion, current challenges related to the microelectrodes design, and future perspectives are outlined.

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Recent Advances in Electrochemical Analytical Methods Involving Metal Enolates

Zabicky

2016

Patai's Chemistry of Functional Groups

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The chapter is an update of one published in 2009, covering the literature up to the autumn of 2014. Due to space limitations assigned to chapters in this book, the review of analytical methods was divided into two parts, the present chapter dealing with electrochemical methods of analysis, especially modified electrodes, and its companion dealing with all the rest. The same guidelines as in the older chapter were followed for the selection of analytical methods, namely: detection and determination of specific metal enolates, conversion of metal cation analytes into complexes with enolic ligands before end analysis and the use of certain metal enolates as analytical aids and tools.

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Microelectrodes based on porphyrins for the determination of ascorbic acid in pharmaceutical samples and beverages

Cited by 6 publications

References 20 publications

Different Aspects of the Voltammetric Detection of Vitamins: A Review

Different Aspects of the Voltammetric Detection of Vitamins: A Review

A Review on Electrochemical Microsensors for Ascorbic Acid Detection: Clinical, Pharmaceutical, and Food Safety Applications

Recent Advances in Electrochemical Analytical Methods Involving Metal Enolates

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