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    Composite poly(dimethoxyaniline) electrochemical nanobiosensor for glufosinate and glyphosate herbicides

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    Songa_PHD_2008.pdf (4.484Mb)
    Date
    2008
    Author
    Songa, Everlyne Apiyo
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    Abstract
    In this thesis, I present a simple, sensitive and low cost electrochemical nanobiosensor for quantitative determination of the herbicides glufosinate, glyphosate and its metabolite aminomethylphosphonic acid (AMPA). Firstly, the nanostructured poly(2,5-dimethoxyaniline) (PDMA) materials were synthesized on gold electrode by the electrochemical "template"method using poly(4-styrenesulfonic acid) (PSS) as the dopant and structure-directing molecule. Fourier transform infrared (FTIR) spectroscopy, UV-Vis Spectroscopy, Transmission electron microscopy (TEM) and Scanning electron microscopy (SEM) studies inferred successful doping of the nanostructured PDMA film by PSS and that the template PSS directed the synthesis of both nanotubes and nanoparticles of PDMA with diameters less than 100 nm.
    URI
    http://hdl.handle.net/11394/2766
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    • Philosophiae Doctor - PhD (Chemistry) [102]

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