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Establishment of fingerprint model for vegetable oil by electronic nose
  
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KeyWord:vegetable oil  electronic nose  rapid identification  fingerprint model
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WANG Zuzhong, ZHOU Jun, ZHANG Lingzhi, LI Ye, ZHANG Chundan,WANG Ying, YUAN Bei, SU Xiurong  
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Abstract:
      The electronic nose was used to test eight kinds of vegetable oils at different heating temperatures. Odor fingerprint model of eight kinds of vegetable oils was established, using linear discriminant(LDA) for analysis and discriminant function method(DFA) for verification. The results showed that the electronic nose could excellently distinguish different kinds of vegetable oils at different temperatures; the model could identify 96% of unknown samples in DFA and effectively identify eight kinds of vegetable oil samples with an accuracy of 100%. Thus, the odor fingerprint model established by electronic nose was reliable.
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