
A novel SFC–QTOF-MS method accurately detected 10 drugs in oral fluid, matching LC–MS/MS in 83 DUID cases while reducing run time by 42% and organic solvent use by 81%.
This month, John Dolan looks at how changes in retention time can help to identify the source of some LC problems and demonstrates what can be learned from observing how the retention varies.
almost 22 years ago
Flow, Pressure and Temperature Calibration, Part I