Abstract
In the Lebensmittelinstitut Braunschweig 89 samples of sultanas were analysed for Ochratoxin A in 2003. The samples were slurried with water to get a homogeneous test-material. After the extraction with acetonitrile the sample-filtrates were cleaned-up by immuno affinity columns. The measurement was performed by HPLC with fluorescence-detection. As the result we asserted a high contamination of sultanas with OTA. The median concentration amounted 2,7 μg/kg at a contamination rate of 95%. 8% of all samples above the limit value of 10 μg/kg with a maximum value of 28,5 μg/kg.
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