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Evaluation of uncertainty in determination of ethyl maltol residues in rapeseed oil by ultra performance liquid chromatography-tandem mass spectrometry
  
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KeyWord:ultra performance liquid chromatography-tandem mass spectrometry  ethyl maltol  uncertainty  rapeseed oil
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SHI Yuanxu Zhejiang Fangyuan Checking Group Co., Ltd., Hangzhou 310018, China 
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Abstract:
      The mathematical model for ethyl maltol residues in rapeseed oil by ultra performance liquid chromatography-tandem mass spectrometry was established and it was used to evaluate the uncertainty components. The results showed that the main sources of uncertainty arose from the standard curve fitting and preparation of standard solution. The expanded uncertainty was 1.544 μg/kg for ethyl maltol contents of 10.096 μg/kg in rapeseed oil (k=2).
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