THE ABSORPTIOMETRIC DETERMINATION OF NIOBIUM IN LOW-GRADE ORES

[1] ALEKSEEVSKAYA NV, 1937, J APPLIED CHEM USSR, V10, P2139

[2] ALIMARIN IP, 1946, ZH ANAL KHIM, V1, P30

[3] SPECTROPHOTOMETRIC DETERMINATION OF URANIUM BY THIOCYANATE METHOD IN ACETONE MEDIUM [J]. ANALYTICAL CHEMISTRY, 1952, 24 (11) : 1780 - 1783

[4] Determination of columbium and tantalum in stainless steel [J]. INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1938, 10 : 0233 - 0235

[5] DAVIDOV AL, 1947, ZAVOD LAB, V9, P1038

[6] COLORIMETRIC DETERMINATION OF NIOBIUM WITH THIOCYANATE [J]. ANALYTICAL CHEMISTRY, 1951, 23 (12) : 1813 - 1816

[7] COLORIMETRIC DETERMINATION OF COLUMBIUM AND TUNGSTEN IN HIGH-TEMPERATURE ALLOYS [J]. ANALYTICAL CHEMISTRY, 1949, 21 (09) : 1098 - 1101

[8] PHOTOMETRIC DETERMINATION OF TRACES OF MOLYBDENUM AFTER SULFIDE PRECIPITATION [J]. ANALYTICA CHIMICA ACTA, 1952, 7 (01) : 57 - 62

[9] JOHNSON CM, 1946, IRON AGE, V157, P66

[10] KLINGLER P, 1939, TECHNISCHE MITTEILUN, V2, P179

[1] ALEKSEEVSKAYA NV, 1937, J APPLIED CHEM USSR, V10, P2139

[2] ALIMARIN IP, 1946, ZH ANAL KHIM, V1, P30

[3] SPECTROPHOTOMETRIC DETERMINATION OF URANIUM BY THIOCYANATE METHOD IN ACETONE MEDIUM [J]. ANALYTICAL CHEMISTRY, 1952, 24 (11) : 1780 - 1783

[4] Determination of columbium and tantalum in stainless steel [J]. INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1938, 10 : 0233 - 0235

[5] DAVIDOV AL, 1947, ZAVOD LAB, V9, P1038

[6] COLORIMETRIC DETERMINATION OF NIOBIUM WITH THIOCYANATE [J]. ANALYTICAL CHEMISTRY, 1951, 23 (12) : 1813 - 1816

[7] COLORIMETRIC DETERMINATION OF COLUMBIUM AND TUNGSTEN IN HIGH-TEMPERATURE ALLOYS [J]. ANALYTICAL CHEMISTRY, 1949, 21 (09) : 1098 - 1101

[8] PHOTOMETRIC DETERMINATION OF TRACES OF MOLYBDENUM AFTER SULFIDE PRECIPITATION [J]. ANALYTICA CHIMICA ACTA, 1952, 7 (01) : 57 - 62

[9] JOHNSON CM, 1946, IRON AGE, V157, P66

[10] KLINGLER P, 1939, TECHNISCHE MITTEILUN, V2, P179