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Extraction spectrophotometric determination of niobium in rocks with sulfochlorophenol S

January 1, 1980

After acid decomposition and potassium pyrosulfate fusion, niobium (1—26 ppm) is separated from interfering elements by extraction into methyl isobutyl ketone from 6 M H2SO4—2 M HF and back-extracted into water. The niobium—sulfochloro-phenol S complex is extracted into amyl alcohol.

Publication Year 1980
Title Extraction spectrophotometric determination of niobium in rocks with sulfochlorophenol S
DOI 10.1016/S0003-2670(01)84330-0
Authors A. E. Childress, L. P. Greenland
Publication Type Article
Publication Subtype Journal Article
Series Title Analytica Chimica Acta
Index ID 70010395
Record Source USGS Publications Warehouse