Detection of melamine in milk powders based on NIR hyperspectral imaging and spectral similarity analyses.

Highlights: [•] Hyperspectral near-infrared imaging to detect low-concentration melamine in dry milk. [•] Visualization of melamine at 200ppm in milk powder without sample pretreatment. [•] Potential detection technique to screen food ingredients for multiple adulterants. [Copyright &y& Elsevier]