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.
Similar content being viewed by others
References
Fedke C (1972) Pestic Biochem Physiol 2:312
Miller JA, Miller EC (1953) Adv Can Res 1:339
Cochrane WP (1975) J Chromatogr Sci 13:246
Cotterill EG (1979) Analyst 104:878
Pacakova V, Kozakova H (1978) J Chromatogr 154:251
Brown HC, Ichikawa K (1961) J Am Chem Soc 83:4372
Allan AL, Agullo E (1982) Anal Quim 78:69
Garcia E (1981) Anal Quim 78:405
Bond AM (1980) Modern polarographic methods in analytical chemistry. Dekker, New York
Birke R, Kim HM, Strassfeld M (1981) Anal Chem 53:852
Goicolea MA (1987) Thesis, University of Pais Vasco, Lejona
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Valentin, J.F.A., Altuna, A.G., Diez-Caballero, R.J.B. et al. Study of the conditions for the determination of metamitron by differential pulse polarography. Z. Anal. Chem. 333, 218–220 (1989). https://doi.org/10.1007/BF00490200
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF00490200