Development and validation of an analytical method to determine fipronil and its degradation products in soil samples Article uri icon

abstract

  • The aim of this study was to develop a methodology for identifying and quantifying Fipronil and its degradation products in soil by gas chromatography-elec-tron capture detector previously extracted using a focused ultrasound probe. This methodology was obtaining a range of recovery between 85 %25 and 120 %25, decreasing approximately solvent used time and cost, respect to other methodologies such as bath ultrasonic, solid-phase extraction, liquid-liquid extraction and soxhlet. The method was validated in fortified matrix, presented linearity in the range of 25-400 μg kg-1, and limit of detection for Fipronil and their products desulfinyl, sulfide and sulfone was 14.7, 9.8, 8.9 and 10.7 μg kg-1, respectively. This process was applied to samples of agricultural soils, where two degradation products desulfinyl and sulfone were found. © Springer Science%2bBusiness Media, LLC 2012.

publication date

  • 2012-01-01