Determination of ochratoxin A in coriander (Coriandrum sativum L.) by HPCL/fluorescence detection
AUTOR(ES)
Lino, Celeste Matos, Baeta, Lurdes, Pena, Angelina Simões, Silveira, Irene Noronha
FONTE
Química Nova
DATA DE PUBLICAÇÃO
2006-06
RESUMO
An analytical study based on extraction with acetonitrile-water, immunoaffinity column cleanup, and HPLC/fluorescence detection for separation and identification of ochratoxin A in coriander was carried out. Validation of the applied methodology was done through accuracy and precision studies. Homogenized samples of coriander were spiked in triplicate with ochratoxin A at 0.5, 1.0, 2.0, and 5.0 µg/kg levels. Recovery values were in the range of 98% for a fortification level at 0.5 µg/kg to 109.1% at 1.0 µg/kg. Application to coriander samples available in Portuguese markes showed no contamination with ochratoxin A.
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