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目前,在测定钼的分光光度法中,灵敏度、选择性及不用萃取等各种性能均优的首推水杨基萤光酮溴化十六烷基三甲铵胶束增敏分光光度法。该法的表观摩尔吸光系数ε达1.4×10~5。但该法在消除钛、钨的干扰方面还无有效办法。所以,若试样中含钛、钨,则使用该法测钼仍有一定困难。在钢铁合金、矿物岩石中,钼、钨、钛共存的情况极其普遍,尤其是钼、钨,它们的性质相似,在自然界常作为伴生元素存在。这样,寻找既能消除钨的干扰、灵敏度又高的测定钼的方法就显得十分必要。本文所研究的用间硝基苯基萤光酮胶束增敏测定钼的反应在灵敏度上与水杨基萤光酮方法差不多(用751G型分光光度计测出
At present, in the determination of molybdenum spectrophotometry, sensitivity, selectivity and no extraction and other performance are superior to the most important salicyl fluoromethyl ketone bromide cetyl trimethyl ammonium Micelle Sensitization Spectrophotometry. The law of the apparent molar absorptivity ε of 1.4 × 10 ~ 5. However, this law has no effective way to eliminate the interference of titanium and tungsten. Therefore, if the sample contains titanium, tungsten, the use of the method of measuring the molybdenum is still some difficulties. In steel alloys and mineral rocks, the coexistence of molybdenum, tungsten and titanium is extremely common, especially molybdenum and tungsten. Their properties are similar and often exist as a companion element in nature. In this way, looking for both eliminate the interference of tungsten, high sensitivity and determination of molybdenum is very necessary. The reaction of molybdenum with m-nitrophenylfluorone micellar sensitization studied in this paper is similar in sensitivity to the salicylfluorone method (measured with a 751G spectrophotometer