Electrochemical method and sensor for pfas detection
AssigneeB.G. Negev Technologies and Applications Ltd., At Ben-Gurion University
InventorsHadar Shmuel BEN YOAV, Miriam AMIRAM, Avner RONEN, Meghna KHADKA
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Abstract
A method for detecting and optionally quantifying one or more poly- and perfluoroalkyl substances (PEAS) in an aqueous sample, comprising adding a redox couple to the sample, electrochemically analyzing the sample with at least one surface-modified working electrode having fluorinated intrinsically disordered polypeptide deposited on its surface, by measuring current, voltage and/or calculating impedance as a PFAS-related signal, and determining the presence and optionally the level of PFAS, in the sample. An electrochemical sensor, a process of fabricating the sensor and an electrochemical sensing system comprising the sensor are also provided.
Claims21
A method for detecting and optionally quantifying one or more poly- and perfluoroalkyl substances (PFAS) in an aqueous sample, comprising adding a redox couple to the sample, electrochemically analyzing the sample with at least one surface-modified working electrode having fluorinated intrinsically disordered polypeptide deposited on its surface, by measuring current, voltage and/or calculating impedance as a PFAS-related signal, and determining the presence and optionally the level of PFAS, in the sample.
An electrochemical sensor comprising a working electrode with a fluorinated intrinsically disordered polypeptide, deposited on the surface of the electrode.
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Dependencies are inferred from the claim text.