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. 2024 Feb 2;10(4):e25544. doi: 10.1016/j.heliyon.2024.e25544

Table 3.

The main peaks in the FTIR spectrum of RSO and their assignments.

Regions of collecting rubber seed Assignment of peaks (cm−1)
C–H stretching vibration (aliphatic) C Created by potrace 1.16, written by Peter Selinger 2001-2019 O stretching vibration (ester) C Created by potrace 1.16, written by Peter Selinger 2001-2019 O stretching vibration (carboxylic acid) C Created by potrace 1.16, written by Peter Selinger 2001-2019 C bending vibration (aliphatic) C–O–C stretching vibration (ester) C–H group vibration (aliphatic)
Karnajora, Sherpur 3010, 2923, 2854 1745 1710 1459 1163, 1099 722
Bhatera, Moulavibazar 3010, 2924, 2854 1745 1710 1459 1163, 1099 722
Raojan, Chattagram 3010, 2923, 2854 1744 1712 1463 1161, 1098 722