dc.contributor.author | Pagare, Margret | |
dc.date.accessioned | 2016-04-25T12:54:46Z | |
dc.date.available | 2016-04-25T12:54:46Z | |
dc.date.issued | 2016 | |
dc.identifier.uri | http://hdl.handle.net/10646/2565 | |
dc.description.abstract | Atrazine is a selective herbicide for control of broadleaf and grassy weeds in corn, sorghum and sugarcane. The extraction efficiency was studied using distilled water, river water and sediment samples. A two-step procedure of extraction and quantification was involved in assessing the recovery of the atrazine residues. Liquid-Liquid and Solid Phase were used for the extraction step. The recoveries for atrazine using the LLE (40ml solvent) were 93.3 2.7%, 94.7 11% and 71.4% for river water, distilled water and sediment sample respectively. The recoveries for atrazine using solid phase with pre-treatment of distilled, river water and sediment sample were 96.6 2.8 %, 91.7 3.6% and 113.9 3 % respectively. Analysis for atrazine residues was performed by HPLC-UV. The results showed that extraction efficiency is greater with Solid phase extraction than with liquid-liquid extraction. | en_US |
dc.language.iso | en_ZW | en_US |
dc.subject | Liquid-liquid extraction | en_US |
dc.subject | Solid Phase Extraction | en_US |
dc.subject | Soxhlet Extraction | en_US |
dc.subject | Gas Chromatography | en_US |
dc.subject | Pesticides | en_US |
dc.title | HPLC determination of atrazine in water and sediment samples after liquid-liquid and solid phase extraction: A comparative study. | en_US |
thesis.degree.advisor | Zaranyika, L.F. Prof | |
thesis.degree.country | Zimbabwe | en_US |
thesis.degree.discipline | Chemistry | en_US |
thesis.degree.faculty | Faculty of Science | en_US |
thesis.degree.grantor | University of Zimbabwe | en_US |
thesis.degree.grantoremail | specialcol@uzlib.uz.ac.zw | |
thesis.degree.level | MSc | en_US |
thesis.degree.name | Master of Science in Analytical Chemistry | en_US |
thesis.degree.thesistype | Thesis | en_US |
dc.date.defense | 2014 | |