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. 2019 Apr 18;19(8):1839. doi: 10.3390/s19081839

Table 1.

Microplastic sample properties.

Abbrev. Polymer Particle Sizes [µm] Particle Shape Density [g/cm3] Raman Bands 1 [rel. cm−1]
PA polyamide 1–315 fragments 1.14 2875, 2903, 2928
PE polyethylene 1–315 fragments 0.92 2850, 2884
PMMA polymethyl-methacrylate 15–150 microbead 1.18 2848, 2955, 3002
PP polypropylene 150 microbead 0.91 2842, 2886, 2961
PS polystyrene 106–125 microbead 1.05 2855, 2907, 3058

1 used for identifying the polymer in the spectral region 2800–3100 rel. cm−1; additional bands exist in the traditional fingerprint region below 1800 rel. cm−1.