TABLE 2.
Cnominal (ng/ml) | Extraction recoveries/% | IS corrected matrix factors/% | ||
---|---|---|---|---|
GM (%) | SD (%) | GM (%) | SD (%) | |
1 | 110.5 | 5.1 | 105.2 | 1.5 |
10 | 99.6 | 2.0 | 99.0 | 2.5 |
400 | 94.6 | 1.0 | 98.5 | 1.0 |
Cnominal, theoretical concentration; GM, grand mean; SD, standard deviation.