Table 9 Analytical Eco-scale for assessing the greenness of the proposed MW-SPA for the quantitation of SEL via formation of a CTC with DDQ
Eco-Scale score parameters | Penalty points (PPs) |
|---|---|
Acetonitrile: <1 mL (mL (g) per sample) | 1 |
DDQ: <1 mL (mL (g) per sample) | 1 |
|  | ∑ = 2 |
Hazard of solvent/reagent | |
Solvent: acetonitrile | 3 |
Reagent: DDQ | 3 |
|  | ∑ = 6 |
Instrument: Energy used (kWh per sample) | |
Microplate reader | 0 |
|  | ∑ = 0 |
Occupational hazardous | |
Analytical process hermetic | 0 |
Emission of vapors and gases to the air | 0 |
|  | ∑ = 0 |
Waste | |
Production (<1 mL (g) per sample) | 1 |
Treatment (No treatment involved) | 3 |
|  | ∑ = 4 |
Total PPs | 12 |
Eco-Scale score | 88 |