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    HPLC determination of atrazine in water and sediment samples after liquid-liquid and solid phase extraction: A comparative study.

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    Pagare_HPLC_DETERMINATION_OF_ATRAZINE_IN_WATER_AND_SEDIMENT_SAMPLES.pdf (4.256Mb)
    Date
    2016
    Author
    Pagare, Margret
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    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.
    URI
    http://hdl.handle.net/10646/2565
    Subject
    Liquid-liquid extraction
    Solid Phase Extraction
    Soxhlet Extraction
    Gas Chromatography
    Pesticides
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    • Faculty of Science e-Theses Collection [257]

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