Zinc Layered Hydroxide-Sodium Dodecyl Sulphate-Isoprocarb Modified Multiwalled Carbon Nanotubes as sensor for Electrochemical Determination of Dopamine in Alkaline Medium

Mohamad Syahrizal Ahmad

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Type :	article
Subject :	Q Science
Main Author :	Mohamad Syahrizal Ahmad
Additional Authors :	Illyas Md Isa Norhayati Hashim Mohamad Idris Saidin Suyanta M. Si Rahadian Zainul Alizar Ulianas Siriboon Mukdasai
Title :	Zinc Layered Hydroxide-Sodium Dodecyl Sulphate-Isoprocarb Modified Multiwalled Carbon Nanotubes as sensor for Electrochemical Determination of Dopamine in Alkaline Medium

Place of Production :	Tanjong Malim
Publisher :	Fakulti Sains dan Matematik
Year of Publication :	2019
Corporate Name :	Universiti Pendidikan Sultan Idris
PDF Full Text :	Login required to access this item.

Abstract : Universiti Pendidikan Sultan Idris

A sensitive and selective electrochemical sensor for detection of dopamine (DOP) using zinc layered hydroxide-sodium dodecyl sulphate-isoprocarb (ZLH-SDS-I)/multiwalled carbon nanotubes (MWCNT) in 100 mM phosphate buffer solution (PBS) and at the pH 8.0 was developed. The morphology and electrochemistry properties of ZLH-SDS-I/MWCNT nanocomposites were characterized using square wave voltammetry (SWV), transmission electron microscopy (TEM), cyclic voltammetry (CV), electrochemical impedence spectroscopy (EIS) and scanning electron microscopy (SEM). Under optimized conditions, the linear analytical curve for determination of dopamine was 1.0 µM to 0.3 mM with the detection limit of 0.43 µM. Besides that, the proposed sensor also exhibited good selectivity, stability, sensitivity and was found to be applicable for dopamine detection in the commercial dopamine hydrochloride injection samples.

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