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Occurrence of fusarium species and their mycotoxins in maize 1. method of determining zearalenone in maize and maize silage by means of high performance liquid chromatography hplc with fluorescence detection



Occurrence of fusarium species and their mycotoxins in maize 1. method of determining zearalenone in maize and maize silage by means of high performance liquid chromatography hplc with fluorescence detection



Archives of Animal Nutrition 38(9): 799-806



A method for the determination of zearalenone in maize and maize silage was developed which distinguishes itself by the effective and fast cleaning of the extracts with the help of a silica gel minicolumn. The samples were extracted with chloroform/methanol (9+1) and cleaned on a silica gel minicolumn after acid-base partition. The zearalenone was quantitatively determined optionally by means of high-performance liquid chromatography (HPLC) with fluorescence detection (excitation wavelength 236 nm, emission filter 418 nm) or thin-layer chromatography (TLC), p-methoxybenzene diazonium fluoroborate and aluminium chloride were used as detection chemicals. The limits of detection are 0.01 mg/kg (HPLC) and 0.1 mg/kg resp. (TLC), the average recovery is 81%. The method was used the the determination of zearalenone in grain maize, CCM silage and silage from whole maize plants.

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Accession: 007609846

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