40 40 3500 90 60 BRUKER 50 50 Transmittance [%] 60 70 80 3114.76 3096.14 2965.65 3000 2500 2000 28 Wavenumber cm-1 1500 1739.57 1650.99 1453.46 1373.24 1277.65 1225.04 1101.30 1004.11 892.00 1000 821.62 620.97 531.59 497.86 480.63 500

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