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Method validation.
| Type | Linearity | Precision | Accuracy | Limits | ||||
|---|---|---|---|---|---|---|---|---|
| Range(µg/L) | R2 | Intraday (%) | Interday(%) | Recovery(%) | RSD(%) | LOD(µg/kg) | LOQ(µg/kg) | |
| Standard Solution | 2–50 | 0.9999 | 0.8 | 1.4 | 98.6 | 1.1 | 3.6 | 12 |
| Coffee | 2.6 | 3.6 | 102.6 | 1.8 | 3.6 | 12 | ||
| Bread | 2.3 | 4.1 | 96.9 | 3.6 | 3.6 | 12 | ||
| Pretzel | 4 | 4.9 | 116.5 | 2.8 | 3.6 | 12 | ||
| Potato chips | 3.1 | 3.7 | 108.2 | 3.1 | 3.6 | 12 | ||
RSD–relative standard deviation; LOD–limit of detection; LOQ–limit of quantification.
