Table 2. Recoveries of METH in Artificial Samples Using the PVDF-PEI/Anti-METH Immunosensor.
| artificial Sample | added (ng/mL) | found (ng/mL) | recovery % |
|---|---|---|---|
| tear | 2.0 | 2.041 ± 0.066 | 102.05 |
| sweat | 2.0 | 2.033 ± 0.271 | 101.65 |
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