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Proceedings 2018, 2(13), 910;

Glyphosate Detection: An Innovative Approach by Using Chemoresistive Gas Sensors

Department of Physics and Earth Sciences, University of Ferrara, 44122 Ferrara, Italy
Micro Nano Facility, Bruno Kessler Foundation, 38123 Trento, Italy
Authors to whom correspondence should be addressed.
Presented at the Eurosensors 2018 Conference, Graz, Austria, 9–12 September 2018.
Published: 27 November 2018
(This article belongs to the Proceedings of Eurosensors 2018)
PDF [526 KB, uploaded 27 November 2018]


Glyphosate is the most frequently used herbicide worldwide, its hazard potential is unclear and nowadays a threshold limit value has not yet been determined. We used eight chemoresistive gas sensors based on semiconducting nanopowders for the identification of N-(phosphonomethyl) glycine in air. The sensors were tested at their proper working temperature in presence of volatile glyphosate at concentrations within the range of 6 ppb–1 ppm, i.e., a plausible interval of interest for its monitoring. The sensing material that best performed was a solid solution of Tungsten oxide and Tin oxide (WS30). This study opens up to design portable devices suitable for monitoring glyphosate concentrations at which workers and people are exposed.
Keywords: glyphosate; chemoresistive gas sensors; semiconducting nanopowders glyphosate; chemoresistive gas sensors; semiconducting nanopowders
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Fabbri, B.; Valt, M.; Gaiardo, A.; Gherardi, S.; Malagù, C.; Guidi, V. Glyphosate Detection: An Innovative Approach by Using Chemoresistive Gas Sensors. Proceedings 2018, 2, 910.

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