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. 2021 Feb 18;2021:3923625. doi: 10.1155/2021/3923625

Table 1.

FT-IR analysis of functional groups in LFP-a1.

Peak (cm−1) Intensity Characterization Functional group
3423 S -O-H stretching vibration O-H
2933 W -C-H stretching vibration -CH2-
1628 S -C=O stretching vibration -COOH
1410 M -C-O stretching vibration -COOH
1074 S -C-O-C and C-O-H overlaping vibrations /