The presence of polyphosphates in solutions of sodium monofluorophosphate.
D002854:Chromatography, Paper; D003731:Dental Caries / Q000517:prevention & control; D005457:Fluoridation; D005459:Fluorides / Q000032:analysis*; D010710:Phosphates / Q000032:analysis*; D012964:Sodium / Q000032:analysis; D012996:Solutions / Q000032:analysis*
D010710:Phosphates; D012996:Solutions; D012964:Sodium; D005459:Fluorides