Differential pulse adsorptive stripping voltammetric determination of simeton in its formulations and vegetables

Environ Monit Assess. 2010 Nov;170(1-4):59-63. doi: 10.1007/s10661-009-1214-0. Epub 2009 Nov 4.

Abstract

A sensitive adsorptive stripping voltammetric method for the determination of simeton with universal buffer solution has been described. The method was based on the adsorption accumulation of simeton at a hanging mercury drop electrode. The overall reduction process is under controlled diffusion. The adsorptive peak was observed at -0.8 V vs SCE in acidic solution 2<pH<6. The peak response was characterized with respect to pH, accumulation potential, time, and scan rate. The calibration plot was found to be linear from 1.13×10(-5) to 3.5×10(-8) M with a limit of detection of 2.0×10(-8) M. Finally, the method has been applied for the determination of simeton in its formulations and vegetable samples.

MeSH terms

  • Electrochemical Techniques / methods*
  • Environmental Monitoring
  • Herbicides / analysis*
  • Herbicides / chemistry
  • Pesticide Residues / analysis
  • Pesticide Residues / chemistry
  • Soil Pollutants / analysis*
  • Soil Pollutants / chemistry
  • Triazines / analysis*
  • Triazines / chemistry
  • Vegetables / chemistry*

Substances

  • Herbicides
  • Pesticide Residues
  • Soil Pollutants
  • Triazines
  • 2-methoxy-4-ethylamino-6-ethylamino-1,3,5-triazine