The 2-Minute Rule for high performance liquid chromatography system
Include a identified amount of the antidepressant protriptyline, which serves as an inner conventional, to each serum sample and to each external regular. To get rid of matrix interferents, move a 0.5-mL aliquot of each and every serum sample or typical through a C18 strong-stage extraction cartridge. Immediately after washing the cartridge to remo