Fig. 1. IR spectra of actone
(a): TR; (b): ATR

Fig. 2. IR spectra of water
(a): TR; (b): ATR

Fig. 3. IR spectra of DMSO
(a): TR; (b): ATR

Fig. 4. IR spectra of methanol
(a): TR; (b): ATR

Fig. 5. IR spectra of acrylic acid
(a): TR; (b): ATR

Fig. 6. IR spectra of n-hexane
(a): TR; (b): ATR

Fig. 7. IR spectra of BMA
(a): TR; (b): ATR

Fig. 8. Effect of scanning times on ATR-IR spectra of BMA
(a): 16 times; (b): 32 times; (c): 64 times

Fig. 9. Effect of resolution on ATR-IR spectra of BMA
(a): 8 cm^-1; (b): 6 cm^-1; (c): 4 cm^-1;(d): 2 cm^-1; (e): 1 cm^-1