Analytical Applicability of Graphene-Modified Electrode in Sunset Yellow Electrochemical Assay
Due to the recent increase in average living standards, food safety has caught public attention. It is necessary to conduct a qualitative and quantitative rapid test of prohibited food additives since the inclusion of food additives or the improper usage of synthetic dyes can negatively impact on th...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/23/4/2160 |
| _version_ | 1797618203432583168 |
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| author | Lidia Măgeruşan Florina Pogăcean Bogdan Ionuţ Cozar Stela Pruneanu |
| author_facet | Lidia Măgeruşan Florina Pogăcean Bogdan Ionuţ Cozar Stela Pruneanu |
| author_sort | Lidia Măgeruşan |
| collection | DOAJ |
| description | Due to the recent increase in average living standards, food safety has caught public attention. It is necessary to conduct a qualitative and quantitative rapid test of prohibited food additives since the inclusion of food additives or the improper usage of synthetic dyes can negatively impact on the human health. Herein, a highly sensitive method for Sunset Yellow detection based on a glassy carbon electrode modified with few-layer graphenes was proposed. The electrochemical behavior of SY at the GR-exf/GCE modified surface was investigated by Cyclic Voltammetry, Square Wave Voltammetry, Electrochemical Impedance Spectroscopy and Amperometry. The influences of pH, scan rate, and interfering species were studied. Under optimized conditions, the developed sensor shows good linearity over a broad SY concentration range, e.g., 0.028–30 µM, with a low limit of detection (LOD = 0.0085 µM) and quantification (LOQ = 0.028 µM) (data obtained by amperometric technique). Furthermore, the modified electrode shows good selectivity, precision and sensitivity and has been successfully applied for SY quantification from commercially available pharmaceutical formulation as well as from candy bars and orange juice. |
| first_indexed | 2024-03-11T08:10:47Z |
| format | Article |
| id | doaj.art-5f5b234ac2994931962ea4c1e1e26326 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T08:10:47Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-5f5b234ac2994931962ea4c1e1e263262023-11-16T23:11:05ZengMDPI AGSensors1424-82202023-02-01234216010.3390/s23042160Analytical Applicability of Graphene-Modified Electrode in Sunset Yellow Electrochemical AssayLidia Măgeruşan0Florina Pogăcean1Bogdan Ionuţ Cozar2Stela Pruneanu3National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat Street, 400293 Cluj-Napoca, RomaniaNational Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat Street, 400293 Cluj-Napoca, RomaniaNational Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat Street, 400293 Cluj-Napoca, RomaniaNational Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat Street, 400293 Cluj-Napoca, RomaniaDue to the recent increase in average living standards, food safety has caught public attention. It is necessary to conduct a qualitative and quantitative rapid test of prohibited food additives since the inclusion of food additives or the improper usage of synthetic dyes can negatively impact on the human health. Herein, a highly sensitive method for Sunset Yellow detection based on a glassy carbon electrode modified with few-layer graphenes was proposed. The electrochemical behavior of SY at the GR-exf/GCE modified surface was investigated by Cyclic Voltammetry, Square Wave Voltammetry, Electrochemical Impedance Spectroscopy and Amperometry. The influences of pH, scan rate, and interfering species were studied. Under optimized conditions, the developed sensor shows good linearity over a broad SY concentration range, e.g., 0.028–30 µM, with a low limit of detection (LOD = 0.0085 µM) and quantification (LOQ = 0.028 µM) (data obtained by amperometric technique). Furthermore, the modified electrode shows good selectivity, precision and sensitivity and has been successfully applied for SY quantification from commercially available pharmaceutical formulation as well as from candy bars and orange juice.https://www.mdpi.com/1424-8220/23/4/2160sunset yellowgraphene-modified electrodeelectrochemical detection |
| spellingShingle | Lidia Măgeruşan Florina Pogăcean Bogdan Ionuţ Cozar Stela Pruneanu Analytical Applicability of Graphene-Modified Electrode in Sunset Yellow Electrochemical Assay Sensors sunset yellow graphene-modified electrode electrochemical detection |
| title | Analytical Applicability of Graphene-Modified Electrode in Sunset Yellow Electrochemical Assay |
| title_full | Analytical Applicability of Graphene-Modified Electrode in Sunset Yellow Electrochemical Assay |
| title_fullStr | Analytical Applicability of Graphene-Modified Electrode in Sunset Yellow Electrochemical Assay |
| title_full_unstemmed | Analytical Applicability of Graphene-Modified Electrode in Sunset Yellow Electrochemical Assay |
| title_short | Analytical Applicability of Graphene-Modified Electrode in Sunset Yellow Electrochemical Assay |
| title_sort | analytical applicability of graphene modified electrode in sunset yellow electrochemical assay |
| topic | sunset yellow graphene-modified electrode electrochemical detection |
| url | https://www.mdpi.com/1424-8220/23/4/2160 |
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