Summary
A method to determine residues of diflubenzuron (DFB), teflubenzuron (TFB), triflumuron (TFM) at 0.01 ppm with recoveries above 60% in apple and pear pulps for baby food is described. DFB, TFB and TFM are extracted with methanol, and cleaned up by SPE using C18 stationary phase and methanol mobile phase. Analysis of the three pesticides is by SFC-UV at 254 nm using a Diol column, and CO2 at 30 MPa and 40°C modified with acetonitrile (10%) mobile phase.
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Bicchi, C., Balbo, C., D'Amato, A. et al. SFC-UV determination of diflubenzuron residues, teflubenzuron and triflumuron in apple and pear pulps for baby food. Chromatographia 43, 439–443 (1996). https://doi.org/10.1007/BF02271027
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DOI: https://doi.org/10.1007/BF02271027