Table 4.
Drug | Intra-day | Inter-day | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
L | M | H | L | M | H | |||||||
CV (%) |
Bias (%) |
CV (%) |
Bias (%) |
CV (%) |
Bias (%) |
CV (%) |
Bias (%) |
CV (%) |
Bias (%) |
CV (%) |
Bias (%) |
|
Cocaine | 10.3 | −11.1 | 7.1 | 4.5 | 4.0 | 0.3 | 10.8 | −13.3 | 2.0 | 2.2 | 0.6 | 0.9 |
EME | 8.0 | −2.9 | 4.0 | −0.4 | 3.5 | −3.2 | 7.8 | −8.8 | 3.2 | 3.3 | 2.7 | −0.2 |
BE | 11.1 | −13.6 | 5.9 | −0.7 | 7.1 | −4.4 | 0.7 | −14.8 | 1.1 | 0.6 | 1.9 | −3.2 |
ECG | 12.5 | 9.7 | 10.9 | −3.7 | 5.2 | 1.2 | 6.9 | 3.5 | 2.9 | −0.5 | 4.3 | 1.7 |
Norcocaine | 2.5 | 11.8 | 2.9 | 2.3 | 7.9 | 9.9 | 0.9 | 12.8 | 1.1 | 3.4 | 1.6 | 11.5 |
NEME | 9.8 | 11.9 | 4.2 | −6.4 | 5.9 | 10.2 | 13.6 | 8.5 | 7.0 | −11.1 | 2.3 | 12.6 |
Cocaethylene | 4.1 | −11.6 | 2.0 | 1.7 | 5.8 | −1.1 | 1.9 | −10.4 | 0.5 | 1.2 | 1.1 | −2.3 |
EEE | 8.2 | 5.7 | 3.2 | 1.1 | 3.4 | 5.6 | 7.7 | −1.1 | 6.4 | −5.9 | 4.3 | 10.1 |
Norcocaethylene | 2.2 | 13.5 | 4.7 | 3.3 | 7.4 | 1.2 | 1.2 | 15.0 | 1.2 | 1.8 | 1.4 | 2.9 |
NEEE | 5.9 | 12.5 | 3.5 | −4.1 | 6.0 | 7.2 | 11.9 | 11.4 | 1.6 | −5.8 | 0.6 | 7.8 |
Low concentration: 1.9–3.2 ng/ml (0.01 µM); Medium concentration: 95–160 ng/ml (0.5 µM); High concentration: 190–320 ng/ml (1 µM)