资料摘要
资料下载采用FOX4000 电子鼻对牛乳中掺入外来脂肪进行定性的判别和定量的预测, 运用主成分分析、判别因子分析、偏最小二乘分析、质量控制分析对掺假的不同梯度的牛奶的原始数据进行处理, 从而降低原始数据的维数。结果在置信区间为95%时即可判别掺假量达到0.1%的牛奶, 同时采用偏最小二乘法对未知样品进行预测, 在相关系数为0.9630 时, 预测值与真实值之间的误差为0.28%。
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