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dc.contributor.authorPagare, Margret
dc.date.accessioned2016-04-25T12:54:46Z
dc.date.available2016-04-25T12:54:46Z
dc.date.issued2016
dc.identifier.urihttp://hdl.handle.net/10646/2565
dc.description.abstractAtrazine 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.isoen_ZWen_US
dc.subjectLiquid-liquid extractionen_US
dc.subjectSolid Phase Extractionen_US
dc.subjectSoxhlet Extractionen_US
dc.subjectGas Chromatographyen_US
dc.subjectPesticidesen_US
dc.titleHPLC determination of atrazine in water and sediment samples after liquid-liquid and solid phase extraction: A comparative study.en_US
thesis.degree.advisorZaranyika, L.F. Prof
thesis.degree.countryZimbabween_US
thesis.degree.disciplineChemistryen_US
thesis.degree.facultyFaculty of Scienceen_US
thesis.degree.grantorUniversity of Zimbabween_US
thesis.degree.grantoremailspecialcol@uzlib.uz.ac.zw
thesis.degree.levelMScen_US
thesis.degree.nameMaster of Science in Analytical Chemistryen_US
thesis.degree.thesistypeThesisen_US
dc.date.defense2014


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