TABLE 1

Test compound optimized settings for LC-MS/MS analysis.

CompoundTransitionIon Source ModeCone VoltageCollision Energy
m/zVeV
Loperamide477.15 → 266.05Positive19.0022.00
Desmethyl-loperamide463.07 → 252.12Positive30.0028.00
Midazolam326.01 → 291.17Positive46.0022.00
Hydroxy-midazolama341.98 → 168.03Positive37.0034.00
Quinidine325.05 → 81.05Positive30.0034.00
Hydroxy-quinidine341.10 → 184.19Positive30.0034.00
Bupivacaine289.16 → 140.19Positive37.0016.00
Warfarin308.90 → 163.01Positive18.0016.00
  • a Both 1-OH and 4-OH hydroxymidazolam were detected.