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- [2] SPECTRAL DETERMINATION OF NICKEL AND COBALT IN MANGANESE ORES INDUSTRIAL LABORATORY, 1971, 37 (08): : 1197 - &
- [3] PHOTOMETRIC DETERMINATION OF COPPER AND COBALT IN ORES, TAILINGS, AND CONCENTRATES INDUSTRIAL LABORATORY, 1976, 42 (10): : 1636 - 1637
- [4] AAS-DETERMINATION OF IRON, NICKEL, COBALT, MANGANESE AND CHROMIUM IN TUNGSTEN AND MOLYBDENUM FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1972, 259 (05): : 337 - &
- [5] DIPHENYLCARBAZONE AS AN EXTRACTION AGENT FOR THE EXTRACTION-ATOMIC-ABSORPTION DETERMINATION OF CADMIUM, COBALT, COPPER, MANGANESE, NICKEL, AND ZINC JOURNAL OF ANALYTICAL CHEMISTRY OF THE USSR, 1980, 35 (11): : 1344 - 1348
- [7] AAS DETERMINATION OF CO, NI, MN AND CR IN ORES, CONCENTRATES AND DUSTS FROM COPPER METALLURGY AFTER MATRIX-ELEMENTS SEPARATION BY EXTRACTION FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1986, 323 (01): : 54 - 56
- [9] SPECTROPHOTOMETRIC DETERMINATION OF COPPER, NICKEL AND COBALT AFTER EXTRACTION WITH BENZOYLTRIFLUOROACETONE FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1974, 271 (04): : 286 - 286