Table 8 Eco-Scale penalty points (PPs) for the determination of SAC and VAL using the proposed HPLC method.
Parameters | Penalty points | |||
|---|---|---|---|---|
Reagents | Amount PPs | Hazard PPs (Pictograms x Signal word) | Total PPs | |
Pictograms | Signal word (warning/danger) | |||
Ethanol | 3 | 2 | 2 | 12 |
Methanol | 2 | 3 | 2 | 12 |
Water | 3 | 0 | 0 | 0 |
Potassium dihydrogen phosphate | 1 | 0 | 1 | 0 |
Phosphoric acid | 1 | 1 | 2 | 2 |
Instrument (HPLC) | Methods using 0.1–1.5 kWh per sample | 1 | ||
Occupational hazard | Analytical process hermitization | 0 | ||
Waste | Amount > 10 mL | 5 | ||
No treatment | 3 | |||
Total penalty points | S 34 | |||
Analytical Eco-Scale total score * = 100 − sum of penalty points | 66 | |||
