Research Article

Detection of Veterinary Antimicrobial Residues in Milk through Near-Infrared Absorption Spectroscopy

Table 3

Explained and cumulative variances of average values of samples: pure enrofloxacin, pure terramycin, pure penicillin, genuine milk, milk-enrofloxacin and milk-terramycin in 100 μg/L each, and milk-penicillin in 4 μg/L.

PCExplained variance (%)Cumulative variance (%)

PC181.919781.9197
PC213.647095.5667
PC33.604099.1707
PC40.814399.9850
PC50.006599.9915
PC60.004599.9660
PC70.0040100.0000