Table 2.
Functional Group | Wavelength (cm-1) | Wavelength (cm-1) | |||
---|---|---|---|---|---|
P1 | P2 | P3 | P4 | ||
O-H stretching | 3750–3000 | 3252 | 3213 | 3229 | 3206 |
N-H stretching | 3300–3500 | 2917 | 2907 | 2919 | 2910 |
Amide I | 1600–1690 | 1636 | 1635 | 1645 | 1635 |
Amide II | 1480–1575 | 1536 | 1534 | 1546 | 1531 |
Amide III | 1229–1301 | 1319 | 1316 | 1322 | 1313 |
PO42- | 1013 | 1017 | 1078 | 1017 |
Notes: P1: Membranes with 0.5% ant plant extract, P2: 1% ant plant extract, P3: 1.5% ant plant extract, P4: 2% ant plant extract.