Determination of 3-amino-1,2,4-triazole (amitrole) in environmental waters by capillary electrophoresis |
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Authors: | Chicharro M Zapardiel A Bermejo E Moreno M |
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Affiliation: | Departamento de Quimica Analitica y Análisis Instrumental, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain. |
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Abstract: | 3-Amino-1,2,4-triazole (amitrole) is a widely used pesticide, with many difficulties to be analyzed at the regulatory level in drinking water, because its high solubility in water. This paper describes a simple and fast method for the simultaneous determination of amitrole and atrazin-2-hydroxy, principal degradation product of s-triazines, by capillary zone electrophoresis. Separation and determination of these herbicides in water samples was performed in 0.02 mol l−1 phosphate buffer at pH 3.2. The method allows determination of the amitrole and atrazin-2-hydroxy in water samples in concentration lower than 100 μg l−1. The detection limits using a previous preconcentration step of amitrole in Alberche River (Comunidad Autónoma de Madrid, Spain) and drinking water spiked samples was of 4 μg l−1. |
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Keywords: | Amitrole Aminotriazole Capillary electrophoresis Environmental waters |
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