Signals assignment of hand sheets in FTIR spectra and their relative intensity for untreated (P-C) and treated (P-X-L-C) pulp.

Relative intensity was calculated as the ratio of absorbance of the band to the absorbance of band at 1510 cm−1.*Bands at 1737 and 1162 cm−1 appear only after enzymatic treatment.相对强度通过某一谱带的吸光度与1510 cm⁻¹处谱带的吸光度之比计算得到。*1737 cm⁻¹与1162 cm⁻¹处的谱带仅在酶处理后出现。