Development of a novel electrochemical sensor for the sensitive detection of Metanil Yellow using Square Wave Voltammetry | [First International Conference on Revamped Scientific Outlook of 21st Century (Abstract Book) • 2022]

Author(s):

1. Misbah Noor: Department of Chemistry, The Rawalpindi Women University,Rawalpindi,Pakistan

2. Afifa Rizwan: Department of Chemistry, The Rawalpindi Women University,Rawalpindi,Pakistan

3. Azeema Munir: Department of Chemistry, Quaid-i-Azam University,Islamabad,Pakistan; Department of Chemistry, The Rawalpindi Women University,Rawalpindi,Pakistan

4. Afzal Shah: Department of Chemistry, Quaid-i-Azam University,Islamabad,Pakistan

Abstract:

Metanil Yellow is a non-permitted food dye and is used as an additive in various foods such as turmeric and Indian Spices. It is also present in wastewater as an organic pollutant. It is very toxic in nature and can affect brain and nervous system badly. Therefore, it is very necessary to detect its presence in water as well as in various foods. For this purpose, different analytical techniques are being employed for the conformation of its presence. In this work, a novel electrochemical sensor based on Multi walled Nano carbon tubes and Silver MWNCTs/Ag/GCE is designed for the sensitive detection of Metanil Yellow by using a very sensitive electrochemical technique i.e., Square Wave Voltammetry (SWV). Developed sensor is given preference over others due to the reason that synergic effect of MWNCTs and Ag greatly enhanced the electrocatalytic activity of Metanil Yellow. A linear graph is drawn between concentration of analyte and the current, between concentration range of 0.1 µM and 0.007 µM, under optimal condition (0.1 M HCl, +0.2V deposition Potential and 75 sec Deposition time). Using the standard deviation of blank solution and slope of linear curve, Limit of detection and limit of Quantification is found accurately which shows the sensitivity and selectivity of the designed electrochemical sensor.

Page(s): 0-0

DOI: DOI not available

Published: Journal: First International Conference on Revamped Scientific Outlook of 21st Century (Abstract Book), Volume: 0, Issue: 0, Year: 2022

Keywords:

synthesis , sensor , Metanil yellow , Voltametry

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