Coomassie brilliant blue G 250 modified carbon paste electrode sensor for the voltammetric detection of dihydroxybenzene isomers

Abstract In this present study, coomassie brilliant blue G-250 (CBBG) modified electrode was fabricated for the specific and simultaneous detection of three dihydroxybenzene isomers such as resorcinol (RS), catechol (CC) and hydroquinone (HQ). The fabrication of the modified electrode was carried ou...

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Autores principales:	K. Chetankumar, B. E. Kumara Swamy, S. C. Sharma, H. Adarsha
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/59376dab48df4292b7d018cbe256d26d
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spelling	oai:doaj.org-article:59376dab48df4292b7d018cbe256d26d2021-12-02T14:53:43ZCoomassie brilliant blue G 250 modified carbon paste electrode sensor for the voltammetric detection of dihydroxybenzene isomers10.1038/s41598-021-95347-22045-2322https://doaj.org/article/59376dab48df4292b7d018cbe256d26d2021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-95347-2https://doaj.org/toc/2045-2322Abstract In this present study, coomassie brilliant blue G-250 (CBBG) modified electrode was fabricated for the specific and simultaneous detection of three dihydroxybenzene isomers such as resorcinol (RS), catechol (CC) and hydroquinone (HQ). The fabrication of the modified electrode was carried out by electrochemical polymerization of CBBG on the surface of unmodified electrode. The surface structures of bare and fabricated electrode were studied by scanning electron microscope (SEM). The established electrode portrays the very fine interface with these isomers and displayed the sufficient sensitivity and selectivity. The specific parameters of pH solution, scan rate and varying the concentration of analytes were optimized at the modified electrode. The sensor process was originated to be adsorption-controlled activity and the low limit of detection (LOD) for RS and CC was attained at 0.24 and 0.21 µM respectively. In the simultaneous study, designed sensor clearly implies the three well separated anodic peaks for RS, HQ and CC nevertheless in unmodified electrode it failed. Also, the constructed electrode was applied for the real sample analysis in tap water and obtained results are agreeable and it consistent in-between 92.80–99.48%.K. ChetankumarB. E. Kumara SwamyS. C. SharmaH. AdarshaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q K. Chetankumar B. E. Kumara Swamy S. C. Sharma H. Adarsha Coomassie brilliant blue G 250 modified carbon paste electrode sensor for the voltammetric detection of dihydroxybenzene isomers
description	Abstract In this present study, coomassie brilliant blue G-250 (CBBG) modified electrode was fabricated for the specific and simultaneous detection of three dihydroxybenzene isomers such as resorcinol (RS), catechol (CC) and hydroquinone (HQ). The fabrication of the modified electrode was carried out by electrochemical polymerization of CBBG on the surface of unmodified electrode. The surface structures of bare and fabricated electrode were studied by scanning electron microscope (SEM). The established electrode portrays the very fine interface with these isomers and displayed the sufficient sensitivity and selectivity. The specific parameters of pH solution, scan rate and varying the concentration of analytes were optimized at the modified electrode. The sensor process was originated to be adsorption-controlled activity and the low limit of detection (LOD) for RS and CC was attained at 0.24 and 0.21 µM respectively. In the simultaneous study, designed sensor clearly implies the three well separated anodic peaks for RS, HQ and CC nevertheless in unmodified electrode it failed. Also, the constructed electrode was applied for the real sample analysis in tap water and obtained results are agreeable and it consistent in-between 92.80–99.48%.
format	article
author	K. Chetankumar B. E. Kumara Swamy S. C. Sharma H. Adarsha
author_facet	K. Chetankumar B. E. Kumara Swamy S. C. Sharma H. Adarsha
author_sort	K. Chetankumar
title	Coomassie brilliant blue G 250 modified carbon paste electrode sensor for the voltammetric detection of dihydroxybenzene isomers
title_short	Coomassie brilliant blue G 250 modified carbon paste electrode sensor for the voltammetric detection of dihydroxybenzene isomers
title_full	Coomassie brilliant blue G 250 modified carbon paste electrode sensor for the voltammetric detection of dihydroxybenzene isomers
title_fullStr	Coomassie brilliant blue G 250 modified carbon paste electrode sensor for the voltammetric detection of dihydroxybenzene isomers
title_full_unstemmed	Coomassie brilliant blue G 250 modified carbon paste electrode sensor for the voltammetric detection of dihydroxybenzene isomers
title_sort	coomassie brilliant blue g 250 modified carbon paste electrode sensor for the voltammetric detection of dihydroxybenzene isomers
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/59376dab48df4292b7d018cbe256d26d
work_keys_str_mv	AT kchetankumar coomassiebrilliantblueg250modifiedcarbonpasteelectrodesensorforthevoltammetricdetectionofdihydroxybenzeneisomers AT bekumaraswamy coomassiebrilliantblueg250modifiedcarbonpasteelectrodesensorforthevoltammetricdetectionofdihydroxybenzeneisomers AT scsharma coomassiebrilliantblueg250modifiedcarbonpasteelectrodesensorforthevoltammetricdetectionofdihydroxybenzeneisomers AT hadarsha coomassiebrilliantblueg250modifiedcarbonpasteelectrodesensorforthevoltammetricdetectionofdihydroxybenzeneisomers
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Coomassie brilliant blue G 250 modified carbon paste electrode sensor for the voltammetric detection of dihydroxybenzene isomers

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