Table 3.
Summary of oils used for extracting microplastics.
| Oil Type | Viscosity | Matrix | Separator | Amount of Oil | Sample Mass | Extraction Time | Polymer Type | Mean Recovery Rate |
|---|---|---|---|---|---|---|---|---|
| Canola oil | 86 cP | Aquatic sediment | Separatory funnel | 50 g | 90 to 168 min per sample | EPS, PVC, ABS, PA, and PES | 96.1% ± 7.4 | |
| Canola oil | 86 cP | Fluvial/artificial sediments (environmental samples) |
Sediment microplastic isolator | 10 g | 15 min for water 45 min for sediment |
EPS, CoPA, PA6, PE, PP, PS, PVC, PVDC, PET, and synthetic rubber | 85.8% | |
| Castor oil | 580 cP | Marine beach sediments Agricultural soil Marine suspended surface solids Fluvial suspended surface solids |
Separatory funnel | - | - | PP, PS, PMMA, and PET-G spiked samples |
99% ± 4 95% ± 4% |
|
| Olive oil | 84 cP | Soil Compost |
Cylinder | 25 g 10 g |
- | PE, PS, PVC, PC, PET, and PU | 90% ± 2% to 97% ± 5% | |
| NaCl + olive oil | - | Sediment Water |
Custom glassware with peristaltic pump | - | - | PP, PE, PA, EPS, and PET | 82% | |
| Mineral oil | 95–100 cp | Sea sand Agricultural soil Sea sediment |
- | 0.25 g | 2 g | 10 s | PP, PS, LDPE, HPDE, PET, PVC, and PTFE | 99% |