Table 2.
Compounds | R2a | Linearity range | MDL | MQL | Recovery (n = 3) | Precision, CV(n = 3) | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
[ng/L] | Intra-day CV [%] | Inter-day CV | |||||||||||||||||||||||
[%] | [%] | ||||||||||||||||||||||||
Low | Medium | High | Low | Medium | High | Low | Medium | High | |||||||||||||||||
D1b | D2c | D3d | D1 | D2 | D3 | D1 | D2 | D3 | D1 | D2 | D3 | D1 | D2 | D3 | D1 | D2 | D3 | ||||||||
6-AM | 0.9901 | 1.0–1000 | 0.5 | 1.0 | 88.5 | 80.4 | 80.1 | 98.6 | 97.5 | 100.8 | 99.6 | 101.3 | 96.6 | 4.6 | 4.1 | 5.9 | 7.2 | 4.3 | 2.3 | 2.8 | 4.6 | 4.6 | 4.3 | 2.3 | 5.3 |
AMPH | 0.9954 | 5.0–1000 | 1.0 | 5.0 | 98.7 | 100.0 | 104.4 | 112.2 | 93.4 | 106.4 | 103.7 | 99.8 | 93.8 | 3.8 | 3.5 | 3.5 | 2.4 | 5.6 | 3.4 | 4.6 | 2.6 | 3.3 | 2.7 | 5.3 | 2.6 |
BEC | 0.9935 | 1.0–1000 | 0.1 | 0.5 | 98.3 | 88.9 | 102.8 | 106.2 | 101.8 | 100.6 | 98.9 | 99.1 | 102.0 | 3.1 | 2.8 | 4.4 | 2.9 | 3.9 | 2.6 | 3.7 | 3.3 | 1.4 | 3.7 | 4.9 | 4.5 |
KET | 0.987 | 1.0–1000 | 0.1 | 0.3 | 91.8 | 94.7 | 99.3 | 95.6 | 101.9 | 99.4 | 101.0 | 100.5 | 102.6 | 3.8 | 4.2 | 4.2 | 2.6 | 4.8 | 3.9 | 4.5 | 4.3 | 5.3 | 4.9 | 4.3 | 3.4 |
MEPH | 0.9916 | 5.0–1000 | 0.1 | 0.3 | 111.6 | 97.3 | 88.1 | 108.8 | 106.1 | 96.2 | 100.3 | 97.5 | 99.6 | 5.9 | 5.2 | 3.5 | 8.0 | 4.7 | 5.0 | 7.4 | 2.3 | 5.8 | 2.7 | 3.5 | 4.2 |
METH | 0.9954 | 1.0–1000 | 0.1 | 1.0 | 98.8 | 93.8 | 103.1 | 115.6 | 118.9 | 115.3 | 101.2 | 105.8 | 102.0 | 5.2 | 5.6 | 5.4 | 7.2 | 5.4 | 3.1 | 6.2 | 4.8 | 5.9 | 4.7 | 5.9 | 5.6 |
MDA | 0.9939 | 5.0–1000 | 2.0 | 5.0 | 103.4 | 98.6 | 105.0 | 119.2 | 117.6 | 118.9 | 118.9 | 119.4 | 114.9 | 6.3 | 2.6 | 2.9 | 8.1 | 7.1 | 3.7 | 1.8 | 1.1 | 4.8 | 3.6 | 1.6 | 3.5 |
MDMA | 0.9944 | 1.0–1000 | 0.1 | 0.3 | 100.5 | 98.3 | 104.4 | 103.6 | 88.2 | 110.6 | 101.6 | 117.5 | 108.8 | 2.4 | 3.6 | 3.6 | 0.9 | 1.5 | 4.8 | 2.1 | 3.3 | 6.4 | 4.5 | 5.5 | 7.4 |
MDEA | 0.9944 | 1.0–1000 | 0.3 | 0.5 | 112.5 | 112.9 | 113.2 | 113.3 | 117.1 | 117.0 | 116.4 | 117.1 | 111.0 | 5.5 | 2.3 | 2.1 | 5.6 | 3.2 | 7.8 | 2.5 | 2.1 | 2.4 | 2.6 | 1.5 | 2.2 |
THC-COOH | 0.988 | 5.0–1000 | 1.0 | 3.0 | 96.7 | 103.9 | 115.6 | 86.1 | 95.9 | 112.7 | 103.9 | 98.7 | 82.4 | 3.4 | 4.4 | 4.4 | 4.5 | 2.3 | 3.3 | 2.4 | 4.9 | 8.1 | 3.1 | 4.9 | 5.1 |
aR2-Coefficient of determination, bD1-day 1, cD2-day 2, dD2-day 3.