Table 1. Summary of sample preparation.
| Sample | Water phase | Oil phase (1 mL) |
|---|---|---|
| 1 | 2% PEG 2 mL | 0.05% TCS in dichloromethane |
| 2 mg mL−1 BSA 500 μL | ||
| Milli-Q water 500 μL | ||
| 2 | 2% PEG 2 mL | 0.05% TCS in dichloromethane |
| 2 mg mL−1 BSA 500 μL | ||
| GNPs 500 μL | ||
| 3 | 2% PEG 2 mL | Dichloromethane |
| 2 mg mL−1 BSA 500 μL | ||
| Milli-Q water 500 μL | ||
| 4 | 2% PEG 2 mL | Dichloromethane |
| 2 mg mL−1 BSA 500 μL | ||
| GNPs 500 μL |