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  • Title: Determination of fludioxonil and famoxadone in processed fruits and vegetables by liquid chromatography/electrospray tandem mass spectrometry.
    Author: Sannino A, Bandini M.
    Journal: J AOAC Int; 2005; 88(6):1822-6. PubMed ID: 16526467.
    Abstract:
    The feasibility of using liquid chromatography/ electrospray ionization-tandem mass spectrometry (LC/ESI-MS/MS) for determining 2 fungicides (fludioxonil and famoxadone) in tomato pulp, pear purée, and concentrated lemon juice has been evaluated. A miniaturized extraction-partition procedure requiring small amounts of nonchlorinated solvents was used. The extracts (5 microL) were analyzed by LC/ESI-MS/MS without previous cleanup. Chromatographic determination was performed using a C18 column with isocratic elution. Four MS/MS transitions of precursor ions were monitored simultaneously (2 for each pesticide) by means of negative ESI. Mean recoveries from samples at fortification levels of 0.002-0.020 mg/kg (fludioxonil) and 0.010-0.100 mg/kg (famoxadone) ranged from 77.1 to 96.5%, with associated relative standard deviations between 4.2 and 11.5%.
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