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| Sample ID | Method | Mol | ||||
|---|---|---|---|---|---|---|
| CA | H3BO3 | HNO3 | H2SO4 | H3PO4 | ||
| CDs1 | Furnace-assisted | 0.46 | — | — | — | — |
| B-CDs1 | 0.46 | 0.2 | — | — | — | |
| N-CDs1 | 0.46 | — | 0.2 | — | — | |
| S-CDs1 | 0.46 | — | — | 0.2 | — | |
| P-CDs1 | 0.46 | — | — | — | 0.2 | |
| CDs2 | 0.46 | — | — | — | — | |
| B-CDs2 | Microwave-assisted | 0.46 | 0.2 | — | — | — |
| N-CDs2 | 0.46 | — | 0.2 | — | — | |
| S-CDs2 | 0.46 | — | — | 0.2 | — | |
| P-CDs2 | 0.46 | — | — | — | 0.2 | |
