Development of Hydroquinone Amperometric sensor using a modified paste electrode based on ionic liquid 1-Ethtl-3-Methylimidazolium Bromide (IR)

Development of Hydroquinone Amperometric sensor using a modified paste electrode based on ionic liquid 1-Ethtl-3-Methylimidazolium Bromide (IR)

<p>This study aims to develop a graphene composite modified paste electrode (GrPE) based on ionic liquid 1-ethyl-3-methylimidazolium bromide (EMIMBr) to detect hydroquinone. The electrochemical properties of the modified electrode were determined using square wave voltammetry and elect...

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Main Author: Hidayahtun Nur Amirah Mustafa
Format: thesis
Language:eng
Published: 2017
Subjects:
TA Engineering (General)
Civil engineering (General)
Online Access:https://ir.upsi.edu.my/detailsg.php?det=3369
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spelling oai:ir.upsi.edu.my:33692020-02-27 Development of Hydroquinone Amperometric sensor using a modified paste electrode based on ionic liquid 1-Ethtl-3-Methylimidazolium Bromide (IR) 2017 Hidayahtun Nur Amirah Mustafa TA Engineering (General). Civil engineering (General) <p>This study aims to develop a graphene composite modified paste electrode (GrPE) based on ionic liquid 1-ethyl-3-methylimidazolium bromide (EMIMBr) to detect hydroquinone. The electrochemical properties of the modified electrode were determined using square wave voltammetry and electrochemical impedance spectroscopy. The results showed that under optimal conditions, the modified electrode showed a linear concentration range of 1.010-6 to 1.010-2 M with a detection limit of hydroquinone, 2.7710-7 M. The interferences from Ba2+, Cu2+, Na+, K+, NO3-, Cl-, SO4 2-, glycine, glucose, fructose and sucrose were negligible. Electrochemical impedance spectroscopy indicated that the charge transfer at the electrode-solution interface was excellent. The proposed electrode was successfully applied to determine hydroquinone in wastewater samples and cosmetic creams with range of recovery 97 104%. In conclusion, the modified electrode that has been developed is able to detect hydroquinone. Therefore, the modified electrode is a suitable alternative for the determination of hydroquinone due to its sensitivity, selectivity and high reproducibility.</p> 2017 thesis https://ir.upsi.edu.my/detailsg.php?det=3369 https://ir.upsi.edu.my/detailsg.php?det=3369 text eng closedAccess Masters Universiti Pendidikan Sultan Idris Fakulti Sains dan Matematik N/A
institution Universiti Pendidikan Sultan Idris
collection UPSI Digital Repository
language eng
topic TA Engineering (General)
Civil engineering (General)
spellingShingle TA Engineering (General)
Civil engineering (General)
Hidayahtun Nur Amirah Mustafa
Development of Hydroquinone Amperometric sensor using a modified paste electrode based on ionic liquid 1-Ethtl-3-Methylimidazolium Bromide (IR)
description <p>This study aims to develop a graphene composite modified paste electrode (GrPE) based on ionic liquid 1-ethyl-3-methylimidazolium bromide (EMIMBr) to detect hydroquinone. The electrochemical properties of the modified electrode were determined using square wave voltammetry and electrochemical impedance spectroscopy. The results showed that under optimal conditions, the modified electrode showed a linear concentration range of 1.010-6 to 1.010-2 M with a detection limit of hydroquinone, 2.7710-7 M. The interferences from Ba2+, Cu2+, Na+, K+, NO3-, Cl-, SO4 2-, glycine, glucose, fructose and sucrose were negligible. Electrochemical impedance spectroscopy indicated that the charge transfer at the electrode-solution interface was excellent. The proposed electrode was successfully applied to determine hydroquinone in wastewater samples and cosmetic creams with range of recovery 97 104%. In conclusion, the modified electrode that has been developed is able to detect hydroquinone. Therefore, the modified electrode is a suitable alternative for the determination of hydroquinone due to its sensitivity, selectivity and high reproducibility.</p>
format thesis
qualification_name
qualification_level Master's degree
author Hidayahtun Nur Amirah Mustafa
author_facet Hidayahtun Nur Amirah Mustafa
author_sort Hidayahtun Nur Amirah Mustafa
title Development of Hydroquinone Amperometric sensor using a modified paste electrode based on ionic liquid 1-Ethtl-3-Methylimidazolium Bromide (IR)
title_short Development of Hydroquinone Amperometric sensor using a modified paste electrode based on ionic liquid 1-Ethtl-3-Methylimidazolium Bromide (IR)
title_full Development of Hydroquinone Amperometric sensor using a modified paste electrode based on ionic liquid 1-Ethtl-3-Methylimidazolium Bromide (IR)
title_fullStr Development of Hydroquinone Amperometric sensor using a modified paste electrode based on ionic liquid 1-Ethtl-3-Methylimidazolium Bromide (IR)
title_full_unstemmed Development of Hydroquinone Amperometric sensor using a modified paste electrode based on ionic liquid 1-Ethtl-3-Methylimidazolium Bromide (IR)
title_sort development of hydroquinone amperometric sensor using a modified paste electrode based on ionic liquid 1-ethtl-3-methylimidazolium bromide (ir)
granting_institution Universiti Pendidikan Sultan Idris
granting_department Fakulti Sains dan Matematik
publishDate 2017
url https://ir.upsi.edu.my/detailsg.php?det=3369
_version_ 1747833076860321792

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