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Electrochemical Polymerisation of Glutamic Acid on the Surface of Graphene Paste Electrode for the Detection and Quantification of Rutin in Food and Medicinal Samples. Diagnostics (Basel) 2022; 12:diagnostics12123113. [PMID: 36553121 PMCID: PMC9777661 DOI: 10.3390/diagnostics12123113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 11/29/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
Rutin (RU) is one of the best-known natural antioxidants with various physiological functions in the human body and other plant species. In this work, an efficient voltammetric sensor to detect RU in food samples was explicated using a poly (glutamic acid)-modified graphene paste electrode (PGAMGPE). In order to detect RU, the proposed sensor diminishes material resistance and overpotential while increasing kinetic rate, peak currents, and material conductance. Using differential pulse voltammetry (DPV) and cyclic voltammetry (CV), the analysing efficiency of a PGAMGPE and a Bare graphene paste electrode (BGPE) was evaluated in 0.2 M phosphate buffer (PB) at an ideal pH of 6.5. in a potential window of -0.25 V to 0.6 V. Electrochemical impedance spectroscopy (EIS) was used to analyse the prepared electrode materials' conductivity, charge transfer resistance, and the kinetics of electron transport. Field emission scanning electron microscopy (FE-SEM) images were considered to compare the exterior morphology of the PGAMGPE and the BGPE. It was discovered that the PGAMGPE and the BGPE have electroactive surfaces of 0.062 cm2 and 0.04 cm2, respectively. It was determined that two protons and two electrons participated in the redox process. The resultant limit of detection (LOD) was found to be 0.04 µM and 0.06 µM, respectively, using DPV and CV methods. In spite of common interferents such as metal ions and chemical species, the developed sensor's selectivity for RU detection was impressive. For the simultaneous analysis of RU in the presence of caffeine (CF), the PGAMGPE affords a good electrochemical nature for RU with good selectivity. Due to the good stability, repeatability, reproducibility, and ease of use of the present RU sensor, it is useful for real sample analysis such as food and medicinal samples with recovery ranging from 94 to 100%.
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Electrocatalytic Analysis of Diclofenac in the Presence of Dopamine at Surface Amplified Voltammetric Sensor Based on Poly Glycine Modified Carbon Nano Tube Paste Electrode. Top Catal 2022. [DOI: 10.1007/s11244-022-01567-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Prinith NS, Manjunatha JG, Tigari G, ALOthman ZA, Alanazi AM, Pandith A. Mechanistic Insights into the Voltammetric Determination of Riboflavin at Poly (Serine) Modified Graphite and Carbon Nanotube Composite Paste Electrode. ChemistrySelect 2021. [DOI: 10.1002/slct.202103184] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Nambudumada S. Prinith
- Department of Chemistry FMKMC College Constituent College of Mangalore University, Madikeri, Karnataka India
| | - Jamballi G. Manjunatha
- Department of Chemistry FMKMC College Constituent College of Mangalore University, Madikeri, Karnataka India
| | - Girish Tigari
- Department of Chemistry FMKMC College Constituent College of Mangalore University, Madikeri, Karnataka India
| | - Zeid A. ALOthman
- Department of Chemistry College of Science King Saud University Riyadh 11451 Saudi Arabia
| | - Amer M. Alanazi
- Pharmaceutical Chemistry Department College of Pharmacy King Saud University Riyadh 11451 Saudi Arabia
| | - Anup Pandith
- Department of Chemistry Kyung Hee University, Seoul Campus 02447 Republic of Korea
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Recent analytical methodologies and analytical trends for riboflavin (vitamin B2) analysis in food, biological and pharmaceutical samples. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116412] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Efficient Electrochemical Determination of Catechol with Hydroquinone at Poly (L‐Serine) Layered Carbon Paste Electrode. ChemistrySelect 2021. [DOI: 10.1002/slct.202101809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Modified QuEChERS/UPLC-MS/MS method to monitor triclosan, ibuprofen, and diclofenac in fish Pseudoplatystoma magdaleniatum. FOOD ANAL METHOD 2021. [DOI: 10.1007/s12161-020-01951-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Zhang L, Liu X, Luo L, Hu C, Fu J, Chang X, Gan T. A high-performance voltammetric methodology for the ultra-sensitive detection of riboflavin in food matrices based on graphene oxide-covered hollow MnO 2 spheres. Food Chem 2021; 352:129368. [PMID: 33667921 DOI: 10.1016/j.foodchem.2021.129368] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/21/2021] [Accepted: 02/11/2021] [Indexed: 11/16/2022]
Abstract
A high-performance voltammetric methodology was developed to achieve ultra-sensitive detection of riboflavin, employing an electrode modified by graphene oxide-covered hollow MnO2 spheres nanocomposite with high catalytic activity, large surface area, and hierarchical layered structure. Under the optimal conditions, the current responses of the oxidation peak located at -0.39 V showed a good linear relationship versus the concentration of riboflavin in the range of 1.0 nM-4.0 μM in acetate buffer (pH 5.4). The limit of detection was determined as 0.26 nM. Moreover, the proposed electrode exhibited high reproducibility (relative standard deviation of 1.7%, n = 10) and excellent stability (97.6% sensitivity within two months), which has been successfully applied to the quantification of riboflavin in complicated food matrices, with results in good accordance with those obtained by chromatography as a reference method, indicating it is an effective sensing platform for ultra-sensitive determination of riboflavin in practical applications.
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Affiliation(s)
- Lijun Zhang
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains & Henan Key Laboratory of Utilization of Non-Metallic Mineral in the South of Henan, Xinyang Normal University, Xinyang 464000, China; Fujian Key Laboratory of Agro-Products Quality and Safety, Institute of Quality Standards Testing Technology for Agro-Products, Fujian Academy of Agricultural Science, Fuzhou 350013, China
| | - Xian Liu
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains & Henan Key Laboratory of Utilization of Non-Metallic Mineral in the South of Henan, Xinyang Normal University, Xinyang 464000, China
| | - Luyu Luo
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains & Henan Key Laboratory of Utilization of Non-Metallic Mineral in the South of Henan, Xinyang Normal University, Xinyang 464000, China
| | - Cong Hu
- Guangxi Key Laboratory of Automatic Detecting Technology and Instruments, Guilin University of Electronic Technology, Guilin 541004, China
| | - Jianwei Fu
- Fujian Key Laboratory of Agro-Products Quality and Safety, Institute of Quality Standards Testing Technology for Agro-Products, Fujian Academy of Agricultural Science, Fuzhou 350013, China
| | - Xueping Chang
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains & Henan Key Laboratory of Utilization of Non-Metallic Mineral in the South of Henan, Xinyang Normal University, Xinyang 464000, China.
| | - Tian Gan
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains & Henan Key Laboratory of Utilization of Non-Metallic Mineral in the South of Henan, Xinyang Normal University, Xinyang 464000, China; Guangxi Key Laboratory of Automatic Detecting Technology and Instruments, Guilin University of Electronic Technology, Guilin 541004, China; Culinary Science Key Laboratory of Sichuan Province, Sichuan Tourism University, Chengdu 610100, China; Fujian Key Laboratory of Agro-Products Quality and Safety, Institute of Quality Standards Testing Technology for Agro-Products, Fujian Academy of Agricultural Science, Fuzhou 350013, China.
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