Fresenius' Zeitschrift für analytische Chemie

, Volume 333, Issue 3, pp 218–220 | Cite as

Study of the conditions for the determination of metamitron by differential pulse polarography

  • J. F. Arranz Valentin
  • A. Goicolea Altuna
  • R. J. Barrio Diez-Caballero
  • A. Arranz Garcia
Original Papers Pesticides, Herbicides and Health Hazardous Substances

Summary

The electrochemical behaviour of the herbicide 4-amino-3-methyl-6-phenyl-1,2,4 triazine-5(4H)-on (Metamitron) is studied in aqueous medium using voltammetric techniques, with the ionic strength adjusted to 0.1 mol/l in sodium perchlorate and using a Britton-Robinson buffer. Two reduction waves on the mercury drop electrode appear, at −0.49 V the first and the second folded at −0.95 V and −1.05 V. The system is identified as irreversible and fundamentally controlled by diffusion. Using differential pulse polarography the detection limit reached was 0.02 mg · l−1 for the first wave with an error of less than 2%. Thus a method is proposed for the determination of Metamitron in soil, with a detection limit of up to 0.02 μg/g.

Keywords

Mercury Drop Electrode Reduction Wave Sodium Perchlorate Ketonic Group Voltammetric Technique 

Untersuchung der Bedingungen zur Metamitronbestimmung durch Differential-Puls-Polarographie

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Copyright information

© Springer-Verlag 1989

Authors and Affiliations

  • J. F. Arranz Valentin
    • 1
  • A. Goicolea Altuna
    • 1
  • R. J. Barrio Diez-Caballero
    • 1
  • A. Arranz Garcia
    • 1
  1. 1.Department of Analytical ChemistryColegio Universitario de AlavaVitoriaSpain

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