Rapid and sensitive quantification of the pesticide lindane by polymer modified electrochemical sensor

Jafar Safaa Noori*, John Mortensen, Alemnew Geto

*Corresponding author

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Abstract

Lindane is documented by the Environmental Protection Agency (EPA) as one of the most toxic registered pesticides. Conventional detection of lindane in the environment requires manual field sampling and complex, time-consuming analytical sample handling relying on skilled labor. In this study, an electrochemical sensing system based on a modified electrode is reported. The system is capable of detecting lindane in aqueous medium in only 20 s. The surface of a conventional carbon electrode is modified with a film of conductive polymer that enables detection of lindane down to 30 nanomolar. The electrode modification procedure is simple and results in a robust sensor that can withstand intensive use. The sensitivity of the sensor is 7.18 µA/µM and the performance was demonstrated in the determination of lindane in spiked ground water. This suggests that the sensor is potentially capable of providing useful readings for decision makers. The rapid and sensitive quantification of lindane in aqueous medium is one step forward to new opportunities for direct, autonomous control of the pesticide level in the environment.

OriginalsprogEngelsk
Artikelnummer393
TidsskriftSensors (Switzerland)
Vol/bind21
Udgave nummer2
Sider (fra-til)1-9
Antal sider9
ISSN1424-8220
DOI
StatusUdgivet - 2 jan. 2021

Bibliografisk note

Funding Information:
This research was funded by Fast Track to Innovation program H2020 grant number [820501].

Emneord

  • Contamination
  • Electrochemical
  • Lindane
  • Pesticide
  • Polymer
  • Sensor
  • Water

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