气相色谱仪结合数据分析软件鉴别橄榄油掺杂

气相色谱仪结合数据分析软件鉴别橄榄油掺杂
目的  基于气相色谱仪和数据分析软件来鉴别橄榄油掺杂。方法  取5种橄榄油分别与市售葵花籽油、大豆油、菜籽油、玉米油和花生油以不同的比例混合来模拟掺杂。运用气相色谱-氢火焰检测器检测其脂肪酸甲酯含量, 结合数据分析软件(mass profiler professional, MPP)进行数据处理, 以偏最小二乘判别分析法建立预测模型。结果  1%(体积比)掺杂样品的鉴别准确率在90%以上。结论  通过此方法对各类掺杂橄榄油都能很好地鉴别是否掺杂。

Objective  To identify olive oil adulteration by gas chromatography combined with data analysis software. Methods  Five kinds of olive oil were selected to adulterate with other 5 vegetable oils (from sunflower, soybean, rapeseed, corn and peanut) in different proportion. The content of fatty acid methyl ester (FAME) was detected in the simulated sample by gas chromatography-flame ionization detector (GC-FID). The prediction model was established using the data analysis software (mass profiler professional, MPP) and partial least square-discrimination analysis (PLS-DA) method. Results  The results showed that the prediction accuracy was more than 90% in the identification of 1% adulterated samples. Conclusion  Different kinds of adulterated olive oils can be identified well by this established method.

标题：气相色谱仪结合数据分析软件鉴别橄榄油掺杂
英文标题：Identification of olive oil adulteration by gas chromatograph combined with data analysis software

作者：
刘韦华 北京出入境检验检疫局
别玮 北京出入境检验检疫局
张朝晖 北京出入境检验检疫局
梁娜娜 北京出入境检验检疫局
吕美玲 安捷伦科技（中国）有限公司
韩深 北京出入境检验检疫局

中文关键词:MPP软件,差异分析,橄榄油,掺杂,脂肪酸甲酯,
英文关键词:mass profiler professional software,difference analysis,olive oil,adulteration,fatty acid methyl ester,

发表日期：2014-08-29

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