The Combination of Vibrational Spectroscopy and Chemometrics for Analysis of Milk Products Adulteration

Figure 1

PCA score plot for classification of milk powder and adulterated milk powder with soybean flour and rice flour using PC1 vs. PC2 (a), PC1 vs. PC3 (b), and PC2 vs. PC3 (c) [23].

(a)

(b)

(c)