
Liquid chromatography–tandem mass spectrometry quantification of 6-thioguanine in DNA using endogenous guanine as internal standard
Keywords: 6MP, 6-mercaptopurine; ALL, acute lymphoblastic leukemia; CAA, chloroacetaldehyde; ɛA, etheno-adenine; ɛG, etheno-guanine; ɛTG, etheno-thioguanine; E-TGN, erythrocyte TGN; G, guanine; SPE, solid phase extraction; TG, 6-thioguanine; TGN, thioguanine nucleo