1626.8 Ethyl-ß-D-6-glucuronide [17685-04-0] 250, 500, 1000, 2000 ng/mL
10889.2 Ethyl sulfate sodium salt [546-74-7] 125, 250, 500, 1000 ng/mL (as ethyl sulfate)
9858.4 Sodium gammahydroxybutyrate [502-85-2] 5, 10, 20, 40 mg/L (as sodium salt)
9466.8 (S)-(+)-Pregabalin [148553-50-8] 250, 500, 1000, 2000 ng/mL