Table 3 Number of spectra for each type of class used in the training set.

From: Detection and characterization of small-sized microplastics (≥ 5 µm) in milk products

Class

NMP

PA

PE

PES

PLA

PMMA

PP

PS

PTFE

PU

Stearate

Number

4146

635

807

726

1638

391

758

567

903

994

984