Research Article

Detection of Melamine in Soybean Meal Using Near-Infrared Microscopy Imaging with Pure Component Spectra as the Evaluation Criteria

Figure 4

The pixel spectra corresponding to the maximum of melamine for Set B samples: 5 g kg−1 (cyan), 10 g kg−1 (blue), 25 g kg−1 (magenta), and 50 g kg−1 (red).