- LC-MS of novel narcoepileptics and related substances.
LC-MS of novel narcoepileptics and related substances.
Journal of separation science (2009-04-29)
Ramisetti Nageswara Rao, Dhananjay D Shinde, Venna Ramesh, Ragampeta Srinivas
PMID19399862
ABSTRACT
Modafinil, adrafinil and their related substances were synthesized and analyzed by RP-LC with ESI-MS/MS. The ionization mode, polarity, cone voltage, and chromatographic conditions were evaluated. The optimum LC-MS conditions to obtain fragment ions indispensable for identification of the structures were described. The bulk drugs purity of modafinil and adrafinil was evaluated on Kromasil C(18) column with ACN/0.02 M ammonium acetate as mobile phase in gradient elution mode at 30 degrees C. The method was found to be suitable not only for monitoring the reactions during the process development but also for quality assurance of modafinil and adrafinil.
MATERIALS
Product Number
Brand
Product Description
Supelco
Discovery® C18 Supelguard Guard Cartridge, 5 μm particle size, L × I.D. 2 cm × 4 mm, pkg of 2 ea
Supelco
Discovery® C18 Supelguard Guard Cartridge, Kit, 5 μm particle size, L × I.D. 2 cm × 2.1 mm
Supelco
Discovery® C18 Supelguard Guard Cartridge, Kit, 5 μm particle size, L × I.D. 2 cm × 4 mm
Supelco
Discovery® C18 Supelguard Guard Cartridge, Kit, 5 μm particle size, L × I.D. 2 cm × 3 mm
Supelco
Discovery® C18 Supelguard Guard Cartridge, 5 μm particle size, L × I.D. 2 cm × 3 mm, pkg of 2 ea
Supelco
Discovery® C18 Supelguard Guard Cartridge, 5 μm particle size, L × I.D. 2 cm × 2.1 mm, pkg of 2 ea