Research Article

The Use of Fourier Transform Infrared Spectroscopy for Quantification of Adulteration in Virgin Walnut Oil

Figure 2

PLS calibration model for the relationship between actual and estimated concentrations of VWO in SO, PO, and SFO. (a) VWO in SO. (b) VWO in PO. (c) VWO in SFO.
305604.fig.002a
(a)
305604.fig.002b
(b)
305604.fig.002c
(c)