Highly sensitive determination of gallic acid on poly (l-Methionine)-carbon nanotube composite electrode

Koçak, Çağrı Ceylan; Karabiberoğlu, Şükriye Ulubay; Dursun, Zekerya

doi:10.1016/j.jelechem.2019.113552

Cited by 34 publications

(13 citation statements)

References 44 publications

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“…The prepared composite electrode exhibited in DPV a LOD of 3.1 nM, whereas the LOD determined through amperometry was found to be 0.5 nM. For validation purposes on real matrices, the developed electrode was applied to gallic acid determination in green tea, black tea, and red wine samples obtaining good recoveries; also gallic acid real content was determined, and results were in accordance with values obtained by LC-MS/MS, thus proving the accuracy of the proposed sensor [ 67 ].…”

Section: Electrochemical Sensorssupporting

confidence: 60%

“…Polymer-CNTs (carbon nanotubes) composite materials have attracted considerable interest due to their porous structure, large active surface structure as well as easy electron transfer ability with a synergistic effect that increases the catalytic activity of the surface [ 67 ]. Glassy carbon electrodes modified with multi-walled carbon nanotubes and electropolymerized gallic acid (poly(gallic acid)/MWNT/GCE) have been developed for direct quercetin quantification by Ziyatdinova et al in 2018 [ 68 ].…”

Section: Electrochemical Sensorsmentioning

confidence: 99%

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Biosensors and Sensing Systems for Rapid Analysis of Phenolic Compounds from Plants: A Comprehensive Review

2020

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Phenolic compounds are secondary metabolites frequently found in plants that exhibit many different effects on human health. Because of the relevant bioactivity, their identification and quantification in agro-food matrices as well as in biological samples are a fundamental issue in the field of quality control of food and food supplements, and clinical analysis. In this review, a critical selection of sensors and biosensors for rapid and selective detection of phenolic compounds is discussed. Sensors based on electrochemistry, photoelectrochemistry, fluorescence, and colorimetry are discussed including devices with or without specific recognition elements, such as biomolecules, enzymes and molecularly imprinted materials. Systems that have been tested on real matrices are prevalently considered but also techniques that show potential development in the field.

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Section: Electrochemical Sensorssupporting

confidence: 60%

Section: Electrochemical Sensorsmentioning

confidence: 99%

Biosensors and Sensing Systems for Rapid Analysis of Phenolic Compounds from Plants: A Comprehensive Review

2020

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“…They used the prepared new sensor for the detection of gallic acid in various samples as black tea, green tea and wine samples. The experimental results showed that the proposed sensor exhibit high selectivity, reproducibility, stability and catalytic effect [88].…”

Section: Differential Pulse Voltammetric Techniquementioning

confidence: 93%

Electrochemical Applications for the Antioxidant Sensing in Food Samples Such as Citrus and Its Derivatives, Soft Drinks, Supplementary Food and Nutrients

Demir¹,

Silah²,

Aydogdu³

2021

Citrus - Research, Development and Biotechnology

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Although there are many definitions of antioxidants, the most general description; antioxidants are carried a phenolic function in their structure and prevent the formation of free radicals or intercept from damage to the cell by scavenging existing radicals. Moreover, they are one of the most effective substances that contain essential nutrients for healthy individuals. The importance of these antioxidants, which have an incredible effect on the body and increase the body’s resistance, is increasing day by day for healthy individuals. Numerous studies have been carried out for antioxidants with excellent properties and however new, reliable, selective, sensitive and green analytical methods are sought for their determination at trace levels in food samples. Along with the latest developments, electrochemical methods are of great interest in the world of science because they are fast, reliable, sensitive and environmentally friendly. Electrochemical methods have been frequently applied to analyze antioxidant capacity in many nutrients samples found in different forms such as solid, liquid without any pretreatment applications in the last decade. Furthermore, these methods are preferred because of the short analysis time, the ability to lower detection limits, reduction in a solvent, high sensitivity, portability, low sample consumption, wide working range, and more economical than existing other traditional analytical methods. The antioxidant sensing applications by modern electrochemical methods such as cyclic, square wave, differential pulse, and combined with stripping voltammetric techniques were used to deduce antioxidant capacity (AC) in critical nutrients. Moreover, this chapter includes a description of the classification of electrochemical methods according to the working electrode type, dynamic working range, limit of determination (LOD), limit of quantification (LOQ), sample type, and using standard analyte and so forth for each voltammetric methods. While many articles applied for the determination of antioxidant sensing by electrochemistry have gained momentum in the last two decades, we focused on the studies conducted over the last 4 years in this chapter.

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“…On the other hand, the carbon materials CNTs have been used in the fabrication of CPEs, in which the electrochemical performance of the electrodes has been drastically improved compared to graphite-based CPEs [36][37][38]. Specifically, multi-walled carbon nanotubes (MWCNTs) have been used in different electroanalytical studies, presenting high activity and sensitivity towards analytes such as gallic acid and uric acid [39,40].…”

Section: Introductionmentioning

confidence: 99%

Electrodetermination of Gallic Acid Using Multi‐walled Carbon Nanotube Paste Electrodes and N‐Octylpyridinium Hexafluorophosphate

et al. 2022

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In this work, the determination of gallic acid was performed using surface‐renewable carbon paste electrodes fabricated with multi‐walled carbon nanotubes (MWCNT) and a mixture of N‐octylpyridinium hexafluorophosphate (OPyPF6) ionic liquid with mineral oil (MO) as binder. This system shows remarkable amperometric sensor characteristics and promotes a better electronic transfer. An electroanalytical study of gallic acid shows a linear range from 4.98±0.25 to 74.1±2.2 μmol L−1, with R2=0.9958 and an experiment a limit of detection of 2.70±0.08 μmol L−1 (S/N=3), and a sensitivity of 0.029 μA μmol−1 L.

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Highly sensitive determination of gallic acid on poly (l-Methionine)-carbon nanotube composite electrode

Cited by 34 publications

References 44 publications

Biosensors and Sensing Systems for Rapid Analysis of Phenolic Compounds from Plants: A Comprehensive Review

Biosensors and Sensing Systems for Rapid Analysis of Phenolic Compounds from Plants: A Comprehensive Review

Electrochemical Applications for the Antioxidant Sensing in Food Samples Such as Citrus and Its Derivatives, Soft Drinks, Supplementary Food and Nutrients

Electrodetermination of Gallic Acid Using Multi‐walled Carbon Nanotube Paste Electrodes and N‐Octylpyridinium Hexafluorophosphate

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