铜矿石、铅矿石和锌矿石化学分析方法 硫酸-苯羟乙酸-辛可宁-氯酸钾底液催化极谱法测定钨量
Methods for chemical analysis of copper ores lead ores and zinc ores—Determination of tungsten content—Catalytic polarographic method in sulfuric acid-phenylhydroxy acetic acid-cinchonine-potassium chlorate system