2Anderson D,Kerr DJ,Blesing C,et al.Simultaneous gas chromatographic-mass spectrophotometric determination ofα-fluoro-β-alanine and 5-fluorouracil in plasma[J]J Chromtogr B Biomed Sci Appl,1997,688(1):87-93.
3Baumann F,Lorenz C,Jaehde U,et al.Determination of cyclophosphamide and its metaholites in human plasma by high-performance liquid chromatography-mass spectrometry[J]J Chromatogr B Biomed Scl Appl,1999,729(1/2):297-305.