Table 8 Penalty points calculation for the greenness evaluation of the present method
Item | Parameter | Word sign | PP score |
|---|---|---|---|
Technique | Spectrofluorimetry | LSH | 0 |
Reagent(s) | Fluorescamine | MSH * | 1 |
Amount of reagent | > 10 mL | 1 | |
Solvent(s) | Acetone (for flurescamine) Ethanol (for dilution) | MSH LSH | 4 1 |
Heating | No heating | 0 | |
Temperature | Ambient temperature | 0 | |
pH | 7.6 | 0 | |
Cooling | No cooling | 0 | |
Energy (kWh per sample) | > 1.0 | 0 | |
Waste | 1–10 mL | 3 | |
Occupational hazards | 0 | ||
(TPPs) | 10 | ||
Eco-scale total score | = 100 – TPP | 90 |