title: Mass spectrometry studies of substituted methanes formed from deutero- and fluoromethylcobalamins.
mesh_terms: D001419:Bacteria / Q000378:metabolism*; D002849:Chromatography, Gas; D003038:Cobamides / Q000378:metabolism; D003067:Coenzymes / Q000378:metabolism*; D003903:Deuterium; D007700:Kinetics; D013058:Mass Spectrometry; D008697:Methane / Q000096:biosynthesis*; D008745:Methylation; D010782:Photolysis; D014316:Tritium; D014805:Vitamin B 12 / Q000378:metabolism*
chemical_list: D003038:Cobamides; D003067:Coenzymes; D014316:Tritium; D003903:Deuterium; D008697:Methane; D014805:Vitamin B 12