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Major Absorption Peaks of AS Preparations in Different Solvents
| Preparations | Peak 1 | Peak 2 | Peak 3 | Peak 4 |
|---|---|---|---|---|
| AS (in methanol) | 272 | 512 | 518 | 556 |
| PAM/AS NPs (in methanol) | N/A | 512 | 544 | 585 |
| PAM/AS NPs (in ethanol) | N/A | 511 | 545 | 585 |
| PAM/AS NPs (in DMSO) | N/A | 513 | 548 | 587 |
| PAM/AS NPs (in PBS solution) | N/A | 512 | 545 | 585 |
