Fourier transform infrared determination of Fluometuron in pesticide formulations

摘要: Abstract A single method has been developed for Fourier transform infrared (FTIR) determination of Fluometuron in pesticide formulations. Samples were ultrasonically shaken with CHCl3 5 min and the FTIR spectra sample extracts standards obtained at a nominal resolution 4 cm−1 from 4000 to 900 cm−1 accumulating 25 scans. is based on measure peak area 1342 1321 cm−1 corrected using baseline defined 1352 1294 cm−1. This procedure provided limit detection 6.5 μg g−1, sensitivity 0.852 a.u. g mg−1 pathlength 0.11 mm, relative standard deviation 1.6% three analysis containing 50.4% (w/v) recoveries 99±2% spiked samples. It necessaries only 7 ml chloroform per do this kind analysis. When results mg g−1 compared those found by high performance liquid chromatography (HPLC), regression line CFTIR=(0.01±0.01)+(0.999±0.005)CHPLC R2=0.999 was obtained, showing that both methods provide statistically comparable results.