Table 5.
Calibration ranges and regression parameters for all analytes (N = 6–9 calibration samples per day).
| Analyte | RIB | ABE | PAL | ANA | LET | FUL | |
|---|---|---|---|---|---|---|---|
| Range (ng/mL) | 25–5000 | 15–3000 | 3.1–500 | 1–200 | 2.5–500 | 5–1000 | |
| Within-day 1 | Slope | 84.48 | 500.67 | 6194.67 | 27,818.67 | 1235.33 | 664.97 |
| CV (%) | 3.94 | 2.00 | 5.68 | 4.77 | 4.93 | 4.97 | |
| Intercept | 875.13 | −246.27 | −2113.33 | 1840.33 | 356.07 | 452.73 | |
| Between-day 2 | Slope | 78.44 | 459.75 | 5940.75 | 25,972.75 | 1350.25 | 513.63 |
| CV (%) | 7.52 | 40.23 | 10.49 | 15.52 | 9.75 | 27.09 | |
| Intercept | 771.03 | 2342.95 | −3629.25 | 8426.75 | 576.38 | 627.63 | |
| R | 0.9941–0.9985 | 0.9955–0.9983 | 0.9950–0.9991 | 0.9958–0.9990 | 0.9931–0.9996 | 0.9953–0.9984 |
1 Within-day—based on three calibration curves constructed on the same day. 2 Between-day—based on four calibration curves constructed in four days.