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Solvent extraction pretreatment for determination of zearalenone in maize oil by HPLC
  
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KeyWord:zearalenone  maize oil  solvent extraction  pretreatment  HPLC
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Author NameAffiliation
ZHU Wenqian，HUANG Jianhua，JIN Qingzhe，etc  
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Abstract:
      The solvent extraction pretreatment method for determination of zearalenone (ZEN) in refined maize oil by HPLC (SE-HPLC) was quantitative determination of ZEN. The detection limit of SE-HPLC method was 4.5 μg/kg. The mean recoveries of the target compounds (spiked at three concentration levels:10, 100 μg/kg and 1 000 μg/kg) were 77.9%, 105.7% and 95.0% respectively and the relative standard deviations (RSDs) were ranged from 2.05% to 8.43%. Through comparative analysis, the method was better than traditional immune affinity column pretreatment method. established and assessed. The results showed that the optimal conditions of solvent extraction pretreatment were obtained as follows: with 90% acetonitrile water solution as extraction solution, ratio of material to liquid 1∶[KG-*2]4 and ultrasonic extraction time 20 min. The extraction pretreatment conditions realized the accurately
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