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本文以水杨基荧光酮为显色剂、采用迭代目标转换因子分析光度法,不经分离对化探样品中钼、钨进行同时测定。结果表明,各组分的相对误差一般小于10％,Mo、W的相对标准偏差分别为1.6％,1.5％。取得满意结果。对标准数据阵的构成、因子数的确定以及矿样分解,干扰消除等诸问题进行了探讨。
In this paper, salicylfluorone was used as chromogenic reagent, and the iterative target conversion factor spectrophotometry was used to determine molybdenum and tungsten in the geochemical exploration samples without separation. The results showed that the relative error of each component was generally less than 10%, and the relative standard deviations of Mo and W were 1.6% and 1.5% respectively. Achieve satisfactory results. The formation of the standard data array, the determination of the number of factors and the decomposition of ore samples, interference elimination and other issues were discussed.