Green Analytical Procedure Index (GAPI) parameters for the proposed method.
| Categorya | Description |
|---|---|
| Sample preparation | |
| Collection (1) | Off-line |
| Preservation (2) | None |
| Transport (3) | None |
| Storage (4) | Normal condition |
| Type of method: direct or indirect (5) | Direct |
| Scale of extraction (6) | Micro-extraction |
| Solvents/reagents used (7) | Green solvents/reagents used |
| Additional treatments (8) | Simple treatments (clean up, solvent removal, etc.) |
| Reagent and solvents | |
| Amount (9) | <10 mL |
| Health hazard (10) | AgNO3 = 3 Sod. borohydride = 3 |
| Safety hazard (11) | AgNO3 = 0 Sod. borohydride = 1 |
| Instrumentation | |
| Energy (12) | ≤1.0 kW h per sample |
| Occupational hazard (13) | Hermetic sealing of the analytical process |
| Waste (14) | 1–10 mL |
| Waste treatment (15) | No treatment |
| Quantificationb | Yes |
a
The numbers between parentheses are the numbers in the GAPI pictogram (on the right).
b
The circle inside the central pentagram represent the quantification property of the method.