Table 1 The retention time and multiple-reaction monitoring (MRM) parameters of target compounds and deuterium-labeled internal standards
Compound | RT (min) | Ions monitored (m/z) | MRM parameters of quantifier ion | ||||
|---|---|---|---|---|---|---|---|
Quantifier | Qualifier | DP | EP | CE | CXP | ||
EtG | 2.5 | 85.0 | 75.0 | − 45.0 | − 10.0 | − 20.0 | − 11.0 |
COC | 5.6 | 182.1 | 77.0 | 16.0 | 10.0 | 23.0 | 24.0 |
CE | 5.9 | 82.0 | 196.1 | 1.0 | 10.0 | 47.0 | 8.0 |
BZE | 5.5 | 168.1 | 77.0 | 61.0 | 10.0 | 27.0 | 6.0 |
EtG-d5 | 2.5 | 85.0 | – | − 20.0 | − 10.0 | − 20.0 | − 7.0 |
COC-d3 | 5.6 | 185.1 | – | 71.0 | 10.0 | 27.0 | 16.0 |
CE-d3 | 5.9 | 199.1 | – | 81.0 | 10.0 | 27.0 | 14.0 |
BZE-d3 | 5.5 | 171.1 | – | 131.0 | 10.0 | 25.0 | 14.0 |