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Discrimination of waste cooking oil by near infrared spectroscopy
  
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KeyWord:waste cooking oil  edible vegetable oil  near infrared spectroscopy  
FundProject:国家自然科学基金(61027010); 国家高技术研究发展计划(No.2009AA04Z315); 国家2009年质检公益性行业科研专项项目《食用植物油成分真实性鉴定标准研究》; 中央高校基金科研业务费专项基金
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Abstract:
      The absorbance spectra of edible vegetable oil and waste cooking oil were researched.After pre-treatment of the spectra based on baseline calibration and first-order derivative,the intensity proportion of edible vegetable oil at 885 nm and 897 nm was larger than 1.4,and that of waste cooking oil was smaller than 1.1,which could be used to discriminate the two kinds of oil.Edible vegetable oil had obvious peaks at 2 430-2 445 nm and 2 465-2 485 nm,but waste cooking oil did not have.Experiment results showed ...
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