Table 1.
The precision and accuracy for paraquat and diquat in human plasma
| Analyte |
Concentration (μg/ml) |
Intra‐day | Inter‐day | Extraction recovery | |||||
|---|---|---|---|---|---|---|---|---|---|
|
Mean ± SD (μg/ml) |
Accuracy RE% |
Precision RSD% |
Mean ± SD (μg/ml) |
Accuracy RE% |
Precision RSD% |
Mean ± SD (%) |
RSD % |
||
| Paraquat | 0.05 | 0.052 ± 0.004 | 4.0 | 7.07 | 0.056 ± 0.009 | 12.0 | 16.49 | – | – |
| 0.1 | 0.098 ± 0.010 | −2.0 | 9.76 | 0.101 ± 0.011 | 1.0 | 11.06 | 95.38 ± 7.01 | 7.35 | |
| 1.5 | 1.560 ± 0.066 | 4.0 | 4.20 | 1.484 ± 0.088 | −1.1 | 5.90 | – | – | |
| 15 | 14.634 ± 0.454 | −2.4 | 3.10 | 14.580 ± 0.961 | −2.8 | 6.60 | 103.97 ± 0.89 | 0.85 | |
| Diquat | 0.05 | 0.052 ± 0.006 | 4.0 | 12.39 | 0.050 ± 0.007 | 0.0 | 14.14 | – | – |
| 0.1 | 0.097 ± 0.011 | −3.0 | 11.30 | 0.099 ± 0.012 | −1.0 | 12.60 | 94.79 ± 3.57 | 3.76 | |
| 1.5 | 1.590 ± 0.057 | 6.0 | 3.60 | 1.504 ± 0.095 | 0.3 | 6.28 | – | – | |
| 15 | 14.868 ± 0.478 | −0.9 | 3.22 | 14.928 ± 1.074 | −0.5 | 7.19 | 98.40 ± 0.79 | 0.81 | |