6533b862fe1ef96bd12c61c4
RESEARCH PRODUCT
Fourier transform infrared spectrometric strategies for the determination of Buprofezin in pesticide formulations
Guillermo QuintásSergio ArmentaMiguel De La GuardiaSalvador GarriguesJavier Morossubject
Flow injection analysisDetection limitChloroformChromatographyChemistryExtraction (chemistry)Analytical chemistryRepeatabilityBiochemistryAnalytical Chemistrychemistry.chemical_compoundsymbols.namesakeFourier transformPartial least squares regressionsymbolsCalibrationEnvironmental ChemistrySpectroscopydescription
Abstract Two different strategies for Buprofezin determination, an off-line extraction and stopped-flow determination and an automated procedure, based on the on-line extraction of Buprofezin samples with chloroform and flowing action analysis–fourier transform infrared (FIA–FT-IR) spectrometric measurement of the extracts, have been developed. For the treatment of the off-line extraction mode, data a three-factor partial least squares (PLSs) calibration was developed, using the region from 1465.7 to 1342.3 cm−1 with a single point baseline defined at 2051.9 cm−1 and based on the use of chloroform solutions of Buprofezin. The method provides a R.S.D. On the other hand, the recommended FIA method provided a 3 s limit of detection of 20 μg ml−1, which corresponds to 0.12% (w/w) in the solid sample, a repeatability of 0.8% as R.S.D., and a maximum sampling frequency for the whole procedure of 6 h−1. The waste generation, being lower than the off-line strategy, is only 3 ml of CHCl3 per sample.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-09-01 | Analytica Chimica Acta |