Stripping Analysis of As(III) by Means of Screen‐Printed Electrodes Modified with Gold Nanoparticles and Carbon Black Nanocomposite |
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| Authors: | Stefano Cinti Sara Politi Danila Moscone Giuseppe Palleschi Fabiana Arduini |
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| Affiliation: | 1. Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata via della Ricerca Scientifica 1, 00133 Rome, Italy;2. Consorzio Interuniversitario Biostrutture e Biosistemi “INBB”, Viale Medaglie d'Oro, 305 Roma, Italy |
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| Abstract: | A novel sensor based on carbon black‐gold nanoparticle nanocomposite modified screen‐printed electrode (CB‐AuNPs/SPE) for the detection of As(III) has been developed. The sensor was prepared modifying the SPE with CB and AuNPs by a drop casting automatable deposition. The As(III) was detected by CB‐AuNPs/SPE using anodic stripping voltammetry, with a high sensitivity (673±6 µA µM?1 cm?2) and reaching a LOD of 0.4 ppb. Finally, CB‐AuNPs/SPE has been applied to As(III) trace analysis in drinking water, obtaining satisfactory recovery values (99±9 %). |
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| Keywords: | Arsenic detection Screen‐printed electrode Gold nanoparticles Carbon black Stripping analysis |
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