Enhanced electrochemical detection of iodide at a reduced graphene oxide-modified carbon electrode in iodized salts
In this study, enhancement of electrochemical performance of electrochemically reduced graphene oxide (ERGO) on a screen-printed carbon electrode (SPCE) (ERGO/SPCE) coupled with ion-pairing (cetyltrimethylammonium bromide, CTAB) for the determination of iodide in table salt has been described. The e...
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| Format: | Article |
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Elsevier
2022
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| _version_ | 1825938514392383488 |
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| author | Jamilan, Mohd Azerulazree Abdullah, Jaafar Alang Ahmad, Shahrul Ainliah Md Noh, Mohd Fairulnizal |
| author_facet | Jamilan, Mohd Azerulazree Abdullah, Jaafar Alang Ahmad, Shahrul Ainliah Md Noh, Mohd Fairulnizal |
| author_sort | Jamilan, Mohd Azerulazree |
| collection | UPM |
| description | In this study, enhancement of electrochemical performance of electrochemically reduced graphene oxide (ERGO) on a screen-printed carbon electrode (SPCE) (ERGO/SPCE) coupled with ion-pairing (cetyltrimethylammonium bromide, CTAB) for the determination of iodide in table salt has been described. The electrode modification of ERGO/SPCE was conducted using cyclic voltammetric (CV) scanning in the potential range of 1.3–0.4 V for 50 cycles after the drop-casting of graphene oxide (GO) suspension on the SPCE. It was found that the electro-active surface area of ERGO/SPCE was increased by 1.5-fold compared to the bare SPCE. ERGO/SPCE sensor displays linearity towards iodide in the concentration range from 0.020 to 1.0 mg/L (sensitivity = 5.40 µA(mg/L)−1, R2 = 0.9906) with the limit of detection (LOD) and limit of quantitation (LOQ) of 0.070 mg/L and 0.21 mg/L, respectively. The comparison between polarography and ERGO/SPCE sensor was in good agreement. |
| first_indexed | 2024-03-06T11:14:58Z |
| format | Article |
| id | upm.eprints-101262 |
| institution | Universiti Putra Malaysia |
| last_indexed | 2024-03-06T11:14:58Z |
| publishDate | 2022 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-1012622023-08-15T04:22:23Z http://psasir.upm.edu.my/id/eprint/101262/ Enhanced electrochemical detection of iodide at a reduced graphene oxide-modified carbon electrode in iodized salts Jamilan, Mohd Azerulazree Abdullah, Jaafar Alang Ahmad, Shahrul Ainliah Md Noh, Mohd Fairulnizal In this study, enhancement of electrochemical performance of electrochemically reduced graphene oxide (ERGO) on a screen-printed carbon electrode (SPCE) (ERGO/SPCE) coupled with ion-pairing (cetyltrimethylammonium bromide, CTAB) for the determination of iodide in table salt has been described. The electrode modification of ERGO/SPCE was conducted using cyclic voltammetric (CV) scanning in the potential range of 1.3–0.4 V for 50 cycles after the drop-casting of graphene oxide (GO) suspension on the SPCE. It was found that the electro-active surface area of ERGO/SPCE was increased by 1.5-fold compared to the bare SPCE. ERGO/SPCE sensor displays linearity towards iodide in the concentration range from 0.020 to 1.0 mg/L (sensitivity = 5.40 µA(mg/L)−1, R2 = 0.9906) with the limit of detection (LOD) and limit of quantitation (LOQ) of 0.070 mg/L and 0.21 mg/L, respectively. The comparison between polarography and ERGO/SPCE sensor was in good agreement. Elsevier 2022 Article PeerReviewed Jamilan, Mohd Azerulazree and Abdullah, Jaafar and Alang Ahmad, Shahrul Ainliah and Md Noh, Mohd Fairulnizal (2022) Enhanced electrochemical detection of iodide at a reduced graphene oxide-modified carbon electrode in iodized salts. Food Chemistry, 393. art. no. 133382. pp. 1-8. ISSN 0308-8146; ESSN: 1873-7072 https://www.sciencedirect.com/science/article/pii/S0308814622013449 10.1016/j.foodchem.2022.133382 |
| spellingShingle | Jamilan, Mohd Azerulazree Abdullah, Jaafar Alang Ahmad, Shahrul Ainliah Md Noh, Mohd Fairulnizal Enhanced electrochemical detection of iodide at a reduced graphene oxide-modified carbon electrode in iodized salts |
| title | Enhanced electrochemical detection of iodide at a reduced graphene oxide-modified carbon electrode in iodized salts |
| title_full | Enhanced electrochemical detection of iodide at a reduced graphene oxide-modified carbon electrode in iodized salts |
| title_fullStr | Enhanced electrochemical detection of iodide at a reduced graphene oxide-modified carbon electrode in iodized salts |
| title_full_unstemmed | Enhanced electrochemical detection of iodide at a reduced graphene oxide-modified carbon electrode in iodized salts |
| title_short | Enhanced electrochemical detection of iodide at a reduced graphene oxide-modified carbon electrode in iodized salts |
| title_sort | enhanced electrochemical detection of iodide at a reduced graphene oxide modified carbon electrode in iodized salts |
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