Methods for chemical analysis of tungsten ores and molybdenum ores—Determination of cobalt content—Polarographic method in dimethylglyoxime-sulfosalicylic acid-ammonium hydroxide-ammonium chloride system
Methods for chemical analysis of tungsten ores and molybdenum ores—Determination of nickel content—Polarographic method in dimethylglyoxime-sulfosalicylic acid-ammonium hydroxide-ammonium chloride system