Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemical engineering
Electrochemically pretreated glassy carbon electrode for electrochemical detection of fenitrothion in tap water and human urine
Electrochimica Acta, Volume 87, Year 2013
Notification
URL copied to clipboard!
Description
A simple, inexpensive and highly sensitive electrochemical method for the detection of fenitrothion in tap water and human urine was developed using electrochemically pretreated glassy carbon electrode. Compared to untreated glassy carbon electrode, the electrochemically pretreated glassy carbon electrode showed a significantly enhanced peak current and peak potential shift indicating its catalytic activity towards fenitrothion reduction. Cyclic voltammetry was used to study the effect of pH, the dependence of peak current and peak potential on scan rate and to extract kinetic parameters (n, α, ks, Γ, E0 and ΔEpc,1/2). The peak current showed linear dependence on the concentration of fenitrothion with a linear regression equation, correlation coefficient (R2) and limit of detection (LoD) of Ipc (μA) = 0.796 C (μM) - 0.043, R 2 = 0.9972 and 7.8 × 10-8 M (S/N = 3), respectively. Recoveries in the range 93.3-96.7% from spiked tap water and 85.73-93.3% from human urine signified the applicability of the developed method for determination of fenitrothion in environmental samples. © 2012 Elsevier Ltd.
Authors & Co-Authors
Geremedhin, Welesamel
Ethiopia, Addis Ababa
Addis Ababa University
Amare, Meareg
Ethiopia, Bahir Dar
Bahir Dar University
Admassie, Shimelis
Ethiopia, Addis Ababa
Addis Ababa University
Statistics
Citations: 68
Authors: 3
Affiliations: 2
Identifiers
Doi:
10.1016/j.electacta.2012.09.046
ISSN:
00134686
Research Areas
Environmental