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- [4] EXTRACTION AND SPECTROPHOTOMETRIC DETERMINATION OF VANADIUM(V) WITH SALICYLALDEHYDE THIOSEMICARBAZONE INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY, 1982, 21 (11): : 1076 - 1076
- [10] SPECTROPHOTOMETRIC DETERMINATION OF NIOBIUM BY FERRON INDIAN JOURNAL OF CHEMISTRY, 1973, 11 (12): : 1327 - 1328