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A reliable gas chromatographic mass spectrometric method has been validated for the determination of trace levels (<10μgL −1 ) of patulin in apple products and quince jam. The method was based on extraction of patulin with ethyl acetate-hexane, alkalinisation and silylation with N,O-bis-trimethylsilyltrifluoroacetamide with 1% of trimethylchloro-silane. The accurate determination of patulin...
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