Table 4 Penalty points (PPs) for proposed chemometric and reported HPLC methods
Parameters | Penalty points (PPs) | |
|---|---|---|
Proposed methods | Reported method [29] | |
Reagents | Â | Â |
 Methanol | 6.00 | 6.00 |
 Water | – | 0.00 |
Instrument | Â | Â |
 Energy (˃ 0.1kWh per sample) | 0.00 | 1.00 |
 Occupational hazard | 0.00 | 0.00 |
 Waste | 1.00 | 5.00 |
Total PPs | Æ©7.00 | Æ©12.00 |
93.00 | 88.00 | |
Analytical Eco-scale score | Excellent green analysis | Excellent green analysis |