Determination of triflumizole by differential pulse polarography in formulation, soil and natural water samples

Inam R., Gulerman E. Z., Sarigul T.

ANALYTICA CHIMICA ACTA, vol.579, no.1, pp.117-123, 2006 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 579 Issue: 1
  • Publication Date: 2006
  • Doi Number: 10.1016/j.aca.2006.07.014
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.117-123
  • Keywords: polarography, determination, pesticide, triflumizole, VOLTAMMETRIC DETERMINATION, PESTICIDE
  • Gazi University Affiliated: Yes


A novel electroanalytical procedure is proposed for the determination of the triflumizole in formulation, soil and natural water samples using differential pulse polarography (DPP). Triflumizole exhibited a single well-defined cathodic peak over the pH range of 1.0-9.0 in Britton-Robinson (B-R) buffers. The peak potentials were shifted to more negative values upon increasing the pH and a plot of reduction potentials (E-p) versus pH exhibited two linear segments with a break at pH 4.0 which corresponded to the pK(a) +/- 1 value of triflumizole. The peak appeared as a maximum at pH 2.0 (-810 mV versus saturated calomel electrode (SCE)) was well resolved and suitable to be investigated for analytical use. The current-concentration plot obtained using this peak was rectilinear over the range from 2.0 to 91.0 mu mol L-1 with a correlation coefficient of 0.993. The limit of detection (LOD) and limit of quantification (LOQ) were obtained as 0.72 and 2.39 mu mol L-1, respectively. The proposed method was successfully applied to the determination of triflumizole in spiked soil and lake water. The mean recoveries of the pesticide were 102.1 and 103.6% with a relative standard deviation of 1.01 and 2.68% in soil and lake water, respectively. The method was extended to the determination of triflumizole in agrochemical fungicide formulation Trifmine (R) and results were in agreement with that obtained by high-performance liquid chromatographic analysis (HPLC). The influence of some diverse ions and some other pesticides was also investigated. (c) 2006 Elsevier B.V. All rights reserved.