Table 4.
The penalty points of the proposed spectrophotometric method according to the Analytical Eco-scale
| Reagents/instruments | Penalty points (PPs) |
|---|---|
| Methanol | 6 |
| Energy of spectrophotometer | 0 |
| Occupational hazard | 0 |
| waste | 5 |
| PPs | 11 |
| Eco-scale score | 89 |
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