Rapid method for determination of phosphine residues in wheat. (Articolo in rivista)

Type
Label
  • Rapid method for determination of phosphine residues in wheat. (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Longobardi F., Pascale M., Silvestri M., Visconti A. (2008)
    Rapid method for determination of phosphine residues in wheat.
    in Food analytical methods
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Longobardi F., Pascale M., Silvestri M., Visconti A. (literal)
Pagina inizio
  • 220 (literal)
Pagina fine
  • 225 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 1(3) (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1) Institute of Sciences of Food Production (ISPA), National Research Council (CNR), Via G. Amendola 122/O, 70126 Bari, Italy (2) Barilla G. & R. Fratelli S.p.A., via Mantova 166, 43100 Parma, Italy (literal)
Titolo
  • Rapid method for determination of phosphine residues in wheat. (literal)
Abstract
  • A rapid method for spectrophotometric determination of phosphine residues in wheat has been developed. Phosphine-fumigated wheat kernels were added with 10% sulfuric acid in a gas-tight flask, and phosphine was released into the headspace by microwave irradiation. Phosphine was spectrophotometrically determined after reaction with silver nitrate. A good linearity of the calibration curve was obtained with wheat spiked at levels ranging from 0.035 to 0.230 ¼g/g with correlation coefficient (r) of 0.9965 and a detection limit of 0.026 ¼g/g. The total time of analysis was 10 min. Headspace analysis was also performed by micro-gas chromatography (GC) with a thermal conductivity detector (micro-GC-TCD). Results obtained with the spectrophotometric and micro-GC-TCD methods showed good correlations with those obtained with the most widely used GC with nitrogen–phosphorus detector with r values of 0.9940 and 0.9946, respectively. (literal)
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