Determination of Deltamethrin in Cattle Dipping Baths by High-Performance Liquid Chromatography

Deltamethrin (S)-α-cyano-3-phenoxybenzyl) (1R,3R)-3-(2,2-dibromovinyl)-2,2-dimethylcyclopropane-1-carboxylate is classified as a pyrethroid pesticide that is largely used as an acaricide and scabicide. For bovines, especially, the treatment is done with the aid of dipping baths of the pyrethroid sol...

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Bibliographic Details
Published inJournal of agricultural and food chemistry Vol. 47; no. 1; pp. 174 - 176
Main Authors Pavan, Flavio A, Dallago, Rogério M, Zanella, Renato, Martins, Ayrton F
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 01.01.1999
Subjects
Animal Husbandry
Animal productions
Animals
Biological and medical sciences
Cattle
Cattle Diseases - prevention & control
Chromatography, High Pressure Liquid - methods
deltamethrin
determination
dips
Fundamental and applied biological sciences. Psychology
high performance liquid chromatography
Insecticides - analysis
Nitriles
Pyrethrins - analysis
Reproducibility of Results
Spectrophotometry, Ultraviolet
Terrestrial animal productions
Vertebrates
Insecticide
Farming animal
Pesticides
Pyrethroids
HPLC chromatography
Veterinary medicine
Bath
Ultraviolet spectrometry
Analysis method
Treatment
Livestock
Deltamethrin
Quantitative analysis
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Summary:Deltamethrin (S)-α-cyano-3-phenoxybenzyl) (1R,3R)-3-(2,2-dibromovinyl)-2,2-dimethylcyclopropane-1-carboxylate is classified as a pyrethroid pesticide that is largely used as an acaricide and scabicide. For bovines, especially, the treatment is done with the aid of dipping baths of the pyrethroid solution. Analytical control of the concentration of deltamethrin in these baths must be done periodically in order to guarantee treatment efficacy. In the proposed procedure, the sample is prepared by centrifugation followed by filtration and measurement by high-performance liquid chromatography (HPLC) with spectrophotometric detection at 275 nm. Separation is done in a Nucleosil C-18 column with acetonitrile−water as the mobile phase. A calibration curve was constructed with external standards, and a detection limit of 0.2 mg L-1 was obtained. In the samples analyzed, only ca. 20% of the total deltamethrin content was found in the solution. The results obtained demonstrate the potential of the described procedure for the determination of deltamethrin in animal baths. Keywords: Deltamethrin; pyrethroid; cattle dipping bath; HPLC
Bibliography:istex:ACBBA0E2700FEA4DC7A49880DA4D6E12AD7A2B20
ark:/67375/TPS-RWJN79KW-X
ISSN:0021-8561
1520-5118
DOI:10.1021/jf980171b