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Comparison of determining benzo(a)pyrene in vegetable oil by two methods
  
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KeyWord:vegetable oil  benzo(a)pyrene  high performance liquid chromatography  gas chromatography-mass spectrometr
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Author NameAffiliation
MA Suhuan  
WANG Xuede  
LIU Bingge  
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Abstract:
      The determinations of benzo(a)pyrene in vegetable oil by high performance liquid chromatography(HPLC) and gas chromatography-mass spectrometry(GC-MS) were compared. The results showed that the commercial neutral alumina solid-phase extraction column was employed to purify oil sample by two methods. The average recovery rates and relative standard deviations of two methods were all above 75% and below 8% respectively, and the limits of detection of two methods were 0.12 μg/kg and 0.40 μg/kg respectively, which could satisfy the measurement requirements. Relatively, HPLC method had the items of simple pretreatment, smooth baseline of peaks, low limit of detection and high recovery rate, which was more suitable for the determination of benzo(a)pyrene content of vegetable oil.
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