Sensitive Electrochemical Determination of Trifluralin at a Disposable Pencil Graphite Electrode


Gege U., Karakaya S. , Dilgin Y.

ELECTROANALYSIS, vol.33, no.6, pp.1547-1556, 2021 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 33 Issue: 6
  • Publication Date: 2021
  • Doi Number: 10.1002/elan.202060618
  • Title of Journal : ELECTROANALYSIS
  • Page Numbers: pp.1547-1556

Abstract

A sensitive differential pulse (DP) voltammetric method has been proposed for the determination of trifluralin (TFA) based on both its reduction and oxidation at a disposable pencil graphite electrode (PGE). DP voltammograms recorded under optimized conditions show that oxidation and reduction peak currents increased linearly in the range from 1.0 to 75.0 mu M and from 0.50 to 100.0 mu M TFA, respectively. LOD and sensitivity values have been determined as 0.39 mu M and 11170 mu A mM(-1) cm(-2) for oxidation and as 0.20 mu M and 22167 mu A mM(-1) cm(-2) for reduction. The acceptable recovery values (95.2-104.8 %) were obtained from real water samples.