Synthesis of Mesoporous Silica Imprinted Salbutamol with Two TEOS/MTES Ratio Compositions through the Direct Incorporation Method for Salbutamol Separation

Table 2

MIPMS-2 and NIPMS-2 characterization results using FTIR.

Wave number (cm^−1)								Functional groups
MIPMS-1		NIPMS-1		MIPMS-2		NIPMS-2
Before extraction	After extraction	Before extraction	After extraction	Before extraction	After extraction	Before extraction	After extraction
3413.10	3458.43	3392.85	3458.43	3428.53	3445.89	3446.85	3434.32	-OH stretching
2919.31	—	2922.21	—	2919.31	—	2919.31	—	C-H stretching symmetries
2849.87	—	2851.80	—	2850.84	—	2849.87	—	C-H stretching asymmetries
1653.99	1653.99	1632.77	1632.77	1635.66	1653.66	1647.24	1635.66	-OH bending
1487.14	—	1490.04	—	1487.14	—	1487.14	—	C-N
1271	1278.83	1271.11	1278.83	1272.06	1279.79	1272.08	1278.83	Si-C
1045.44	1080.16	1054.44	1079.63	1045.44	1074	1047.36	1122.59	Si-O