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钼(Ⅵ)在硫酸-苯羟乙酸-氯酸钾底液中形成的吸附催化波已应用于矿石中痕量钼的测定。一般是在普通极谱仪上测定矿石中含量为0.000x%的钼,而在示波极谱仪上阴极极化扫描所得图形欠佳。通常选矿试样要求测定含量0.00x～0.0x%的钼,且要求分析方法简便、快速。为此,本实验在钼(Ⅵ)-硫酸-苯羟乙酸-氯酸钠体系中加入柠檬酸以降低钼催化波的灵敏度,并进行阳极极化导数示波极谱测定。使方法的灵敏度和
Adsorption catalysis of molybdenum (Ⅵ) formed in sulfuric acid-glyoxylic acid-potassium chlorate bottoms has been applied to the determination of trace molybdenum in ores. Generally, the content of molybdenum in the ore is determined to be 0.000x% molybdenum on an ordinary polarographic instrument, whereas the cathodic polarization scanning on a oscillographic polarograph results in a poor pattern. Dressing samples are usually required to determine the content of molybdenum 0.00x ~ 0.0x%, and the requirements of the analysis method is simple and fast. For this reason, citric acid was added to the molybdenum (VI) -sulfuric acid-p-hydroxyacetic acid-sodium chlorate system to reduce the sensitivity of molybdenum catalytic wave and the anodic polarization derivative oscillopolarographic determination was carried out. Make the method sensitivity and