1. Type of analytical method (10)
— Select —
Non-instrumental / smartphone-based — 10
≤ 0.1 kWh per sample — 8
< 1.5 kWh per sample — 5
≥ 1.5 kWh per sample — 2
2. Extraction technique (10)
3. Pre-steps (synthesis / pretreatment) (10)
— Select —
Not required — 10
Eco: room temperature, time < 1 h — 8
Mild: RT >1 h, or heating <1 h, or cooling to 0 °C — 5
Harsh: heating >1 h or cooling < 0 °C — 2
4. Sample size (mg or µL) (10)
— Select —
< 1 — 10
1 – 10 — 8
10 – 100 — 5
100 – 1000 — 2
> 1000 — 0
5. Solvent sustainability (EASE) (10)
Computed automatically from the solvent rows above using the published EASE equation.
6. Total waste generated (10)
— Select —
< 1 mL — 10
1 – 10 mL — 8
11 – 50 mL — 5
50 – 100 mL — 2
> 100 mL — 0
7. Waste treatment (10)
— Select —
Proper treatment / recycling — 10
Degradation — 8
No treatment — 0
8. Operator safety & emissions (10)
— Select —
No hazard — 10
High hazard — 0
9. Throughput (samples/h) (10)
— Select —
High (> 25) — 10
Moderate (13 – 25) — 5
Low (< 12) — 2
10. Automation (10)
— Select —
Automated — 10
Semi-automated — 8
Manual — 5