Simultaneous determination of allopurinol and oxipurinol in biological fluids by mass fragmentography.
D000493:Allopurinol / Q000097:blood* / Q000627:therapeutic use / Q000652:urine; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D007042:Hypoxanthines / Q000097:blood / Q000652:urine; D010117:Oxypurinol / Q000097:blood* / Q000652:urine; D011743:Pyrimidines / Q000097:blood*; D012016:Reference Values; D014970:Xanthines / Q000097:blood / Q000652:urine
D007042:Hypoxanthines; D011743:Pyrimidines; D014970:Xanthines; D000493:Allopurinol; D010117:Oxypurinol