Extraction-spectrophotometric determination of niobium in steels using sulphochlorophenol S and high-molecular amines

Ivanov N.Borissova R.Veselinova E.2024-07-102024-07-102024-07-102024-07-101969-01-010016-11521618-265010.1007/BF00573085SCOPUS_ID:34250381507https://rlib.uctm.edu/handle/123456789/126enExtraction-spectrophotometric determination of niobium in steels using sulphochlorophenol S and high-molecular aminesArticle