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Center of Excellence in Environmental Studies
Document Details
Document Type
:
Article In Journal
Document Title
:
Stripping voltammetry method for determination of manganese as complex with oxine at the carbon paste electrodewith and without modification with montmorillonite clay
طريقة حجمية شرائطية لتقدير المنجنيز كمركب مع الأوكسين على الكترود كربونى باستخدام طين متحور أحادى المورولونيت أو بدونه
Subject
:
Enviromental sciences
Document Language
:
English
Abstract
:
Oxine (8-hydroxyquinoline) was used as an efficient and selective ligand for stripping voltammetry trace determination of Mn(II). A validated square-wave adsorptive cathodic stripping voltammetry method has been developed for determination of Mn(II) selectively as oxine complex using both the bare carbon paste electrode (CPE) and the modified CPE with 7 % (w/w) montmorillonite-Na clay. Modification of carbon paste with montmorillonite clay was found to greatly enhance its adsorption capacity. Limits of detection of 45 ng l−1 (8.19×10−10 mol L−1) and 1.8 ng l−1 (3.28×10−11 mol L−1) Mn(II) were achieved using the bare and modified CP electrodes, respectively. The achieved limits of detection of Mn(II) as oxine complex using the modified CPE are much sensitive than the detection limits obtained by most of the reported electrochemical methods. The developed stripping voltammetry method using both electrodes was successfully applied for trace determination of Mn(II) in various water samples without interferences from various organic and inorganic species.
ISSN
:
1432-8488
Journal Name
:
Journal of Solid State Electrochemistry Current Research and Development in Science and Technology
Volume
:
8
Issue Number
:
2
Publishing Year
:
1434 AH
2013 AD
Article Type
:
Article
Added Date
:
Monday, September 9, 2013
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
Hanaa S. El-Desoky
El-Desoky, Hanaa S.
Researcher
Mohamed M. Ghoneim
Ghoneim, Mohamed M.
Researcher
mmghoneim@usa.net
اقبال محمد اسماعيل
Ismail, Iqbal M.
Researcher
Files
File Name
Type
Description
35964.pdf
pdf
Stripping voltammetry method for determination of manganese as complex with oxine at the carbon paste electrodewith and without modification with montmorillonite clay
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