title: Measurement of magnesium in serum and urine with a random access analyzer by use of a modified xylidyl blue-1 procedure.
mesh_terms: D001322:Autoanalysis; D001391:Azo Compounds; D006801:Humans; D008274:Magnesium / Q000097:blood* / Q000652:urine; D013053:Spectrophotometry / Q000379:methods; D013054:Spectrophotometry, Atomic / Q000379:methods
chemical_list: D001391:Azo Compounds; C040875:xylidyl blue I; D008274:Magnesium