Voltammetric analysis of the acaricide amitraz and its degradant, 2,4-dimethylaniline
2006; Elsevier BV; Volume: 71; Issue: 3 Linguagem: Inglês
10.1016/j.talanta.2006.06.037
ISSN1873-3573
AutoresR. D. Brimecombe, Janice Limson,
Tópico(s)Animal Ecology and Behavior Studies
ResumoAmitraz is a formamide acaracide used in the control of ticks and mites in livestock. An electrochemical method for the determination of total amitraz residues and its final breakdown product, 2,4-dimethylaniline, is presented. Cyclic voltammetry at a glassy carbon electrode showed the irreversible oxidation of amitraz and of 2,4-dimethylaniline. A linear current response was obtained with an extrapolated limit of detection of 2x10(-8)M for amitraz and 1x10(-8)M for 2,4-dimethylaniline. The biological degradation of amitraz and subsequent formation of 2,4-dimethylaniline was readily monitored in spent cattle dip. Amitraz and 2,4-dimethylaniline was also monitored in milk and honey samples.
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