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硫氰酸盐直接光度法测定钨,对于钼的干扰行为及解决办法已有不少研究,但至今还存在着一些问题。而目前国内现有的资料对于钼的干扰也说法不一。为此,我们就钼对钨的干扰行为及消除方法作了一些研究,并对合适的酸度等其他条件也进行了选择,以解决含钼材料、特别是含高钼材料中钨的直接光度法测定。实验部分 (一)试剂及仪器 1.硫磷混酸:于500毫升水中,加入硫酸(比重=1.84)150毫升,冷却后
Thiocyanate direct spectrophotometric determination of tungsten, molybdenum interference behavior and solutions have been studied, but so far there are still some problems. At present, the existing domestic data also disagree on the interference of molybdenum. For this reason, we made some research on the interference behavior and elimination of tungsten from molybdenum, and also selected other suitable conditions such as acidity to solve the problem of molybdenum containing materials, especially tungsten with high molybdenum content Determination. Experimental part (A) reagents and equipment 1. Sulfuric acid mixed acid: In 500 ml of water, add sulfuric acid (specific gravity = 1.84) 150 ml, after cooling