title: Extractive photometric determination of barium and strontium with dimethylsulphonazo DAL.
abstract: Dimethylsulphonazo DAL, i.e., the dianilide of 2,7-bis(o-sulpho-p-methylphenylazo)chromotropic acid, is proposed as an extractive photometric reagent for determination of trace amounts of barium and strontium.
authors.affiliation: Nuclear Research Institute Czechoslovak Academy of Sciences Rzhezh near Prague, Czechoslovakia.
authors.forename: B
authors.initials: B
authors.lastname: Budesínský
authors.forename: D
authors.initials: D
authors.lastname: Vrzalová