title: Analytical study of the phosphorescence of purines in aqueous solution at 77 degrees K.
mesh_terms: D000225:Adenine / Q000032:analysis; D005453:Fluorescence; D006863:Hydrogen-Ion Concentration; D015122:Mercaptopurine / Q000032:analysis; D011687:Purines / Q000032:analysis*; D013050:Spectrometry, Fluorescence; D013696:Temperature; D014867:Water
chemical_list: D011687:Purines; D014867:Water; D015122:Mercaptopurine; D000225:Adenine