Substances
Matrix
Comments
Nabilone and metabolites
Naftidrofuryl
NDMA
Neomycin
Nicardipine
Nicorandil
Nicotine/Cotinine
Nifedipine
Nitrofurantoin
Norfloxacin
human plasma, rat plasma
human serum
Buffer
human serum, rabbit serum
human plasma, CSF
human plasma
rat plasma, lung tissue
plasma
plasma
human plasma, urine