title: Mass spectrometry of 7-methylpurine nucleosides: studies of a characteristic oxygen incorporation reaction that occurs during trimethylsilylation.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D002849:Chromatography, Gas; D003853:Deoxyribonucleosides; D005463:Fluoroacetates; D006151:Guanosine; D007288:Inosine; D007659:Ketones; D013058:Mass Spectrometry; D008745:Methylation; D009705:Nucleosides / Q000032:analysis; D010100:Oxygen; D010103:Oxygen Isotopes; D011687:Purines; D012263:Ribonucleosides; D012825:Silicon; D014835:Volatilization
chemical_list: D003853:Deoxyribonucleosides; D005463:Fluoroacetates; D007659:Ketones; D009705:Nucleosides; D010103:Oxygen Isotopes; D011687:Purines; D012263:Ribonucleosides; D006151:Guanosine; D007288:Inosine; D010100:Oxygen; D012825:Silicon