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This work reports on the simplified fabrication and on the characterization of bismuth-based screen-printed electrodes (SPEs) for use in heavy metal detection. A nanocomposite consisting of bismuth nanoparticles and amorphous carbon was synthesized by a combined one-step sol-gel and pyrolysis process and milled down to a specific particle size distribution as required for the preparation of an ink...
This work reports on a detailed analytical assessment of a bismuth nanoparticle-porous carbon paste electrode working as an electrochemical sensor for the sensitive detection of Cd(II), Pb(II) and Ni(II) in water samples of different origin. Detection limits of 0.81, 0.65 and 5.47ppb for Cd(II), Pb(II) and Ni(II), were achieved, respectively, keeping the overall analysis time below 240s. This sensor...
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