[Studies on hydrofluoran and its derivatives as organic reagents. XVI. Spectrophotometric determination of Ag [i], CN-, I- and S203-2- with 3,4,5,6-tetrachloro 3',4',5',6'=tetrahydroxyfluoran methyl ester and 1,10-phenanthroline (author's transl)].
D003486:Cyanides / Q000032:analysis*; D006571:Heterocyclic Compounds; D007202:Indicators and Reagents; D007455:Iodine / Q000032:analysis*; D010618:Phenanthrolines; D012834:Silver / Q000032:analysis*; D013053:Spectrophotometry
D003486:Cyanides; D006571:Heterocyclic Compounds; D007202:Indicators and Reagents; D010618:Phenanthrolines; D012834:Silver; D007455:Iodine