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前文报导了用钼—羟胺—(5—Br—PADAP)三元络合物分光光度法测定微量钼,并对八种不同的标准钢样和两个管理矿样中的微量钼进行了测定,得到满意的结果。证明本法的应用范围较广泛,灵敏度亦高,准确性也好。我们应用于几个钨矿中微量钼的直接测定,也得到较满意的结果。 试剂:混合掩蔽剂,取74.4克EDTA、10克环已烷二胺四乙酸、121.5克柠檬酸铵,加水和几颗氢氧化钠进行溶解并用水稀至1升;其它试剂的配制同前文。
The foregoing reports the determination of trace molybdenum by the molybdenum-hydroxylamine- (5-Br-PADAP) ternary complex spectrophotometry and the determination of trace molybdenum in eight different standard steel samples and two managed ore samples, Get satisfied result. It proves that this Law has a wide range of applications, high sensitivity and good accuracy. We apply to the direct determination of trace molybdenum in several tungsten ores, but also get more satisfactory results. Reagents: Mixing masking agent, take 74.4 grams of EDTA, 10 grams of cyclohexanediaminetetraacetic acid, 121.5 grams of ammonium citrate, add water and several sodium hydroxide to dissolve and dilute to 1 liter with water; other reagents were prepared as described above.