The Use of Fourier Transform Infrared Spectroscopy for Quantification of Adulteration in Virgin Walnut Oil
Figure 1
IR spectra of soybean oil (SO), puer tea seed oil (PO), sunflower oil (SFO), and virgin walnut oil (VWO) at IR region of 4000–650 cm−1. (A) VWO, (B) SO, (C) PO, and (D) SFO.
