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. 2020 Oct 30;10(11):322. doi: 10.3390/membranes10110322

Figure 7.

Figure 7

FTIR-ATR spectra of PET ion-track membranes at different stages of modification at wavenumber range from 1800–400 cm−1 (a) from 1560 to 1640 cm−1 (b) and from 1350 to 940 cm−1 (c).