Poly(3,4 –Ethylenedioxythiophene ) (PEDOT) Modified Glassy Carbon Electrode for the Voltammetric Determination of Diazinon
| dc.contributor.advisor | Admassie Shimelis (PhD) | |
| dc.contributor.author | Yifru Alemayehu | |
| dc.date.accessioned | 2018-06-13T08:43:47Z | |
| dc.date.accessioned | 2023-11-09T16:19:37Z | |
| dc.date.available | 2018-06-13T08:43:47Z | |
| dc.date.available | 2023-11-09T16:19:37Z | |
| dc.date.issued | 2010-07 | |
| dc.description.abstract | A glassy carbon electrode (GCE) is modified with PEDOT and its application for differential pulse voltammetry (DPV) detection of diazinon ,DZN ( organophosphate pesticide) is observed. The PEDOT shows a strong affinity toward diazinon molecule which provides sensitivity for the modified GCE. Instrumental and Chemical parameters influencing the voltammetric response are optimized for diazinon determination . Under Optimum experimental condition the peak current is linear to diazinon concentration over the range of 20μM to 80μM with a correlation coefficient of 0.99866. The limit of detection based on three times the standard deviation of the blank (3Sb) was 4.245x 10-6M. The recovery values for sample tap-water solution containing low ,middle and high concentration of diazinon (50μM, 60 μM & 80 μM) were 95.24%,88.4% & 81.29%; respectively. Thus this modified electrode is considerably applied for the determination of DZN in tap-water sample. Key words : Diazinon , differential pulse voltammetry, PEDOT , GCE | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/657 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa Universty | en_US |
| dc.subject | Diazinon ; differential pulse voltammetry; PEDOT ; GCE | en_US |
| dc.title | Poly(3,4 –Ethylenedioxythiophene ) (PEDOT) Modified Glassy Carbon Electrode for the Voltammetric Determination of Diazinon | en_US |
| dc.type | Thesis | en_US |