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較長时期以来,測定鋼鉄中的Al量是此較困难的,特別是高含量的高合金鋼,因为要求Al和Fe,Mn,Cr,Ni,Co,Cu,Ti,V等完全分离,用一般的分离方法难以見效。早有人采用的汞阴极电解法虽能解决大部分困难,但旣未使分离更为簡便,而Mn、Ti等仍不能除去;汞阴极电解的設备目前亦难为一般实驗室所俱备。其次,重量法所需分析时間較長,Pigott等人會以KCN-Oxine(KCN-8-hydroxyquinoline)法或Cupferron法加以解决,但須应用了大量的毒品(每次常須用KCN 10克以上)或者成本过高,都难为日常分析所应用。1953年,Kakita曾
Since a long period of time, the determination of the amount of Al in steel 是 is more difficult, especially high content of high alloy steel, because of the requirements of Al and Fe, Mn, Cr, Ni, Co, Cu, Ti, The general separation method is difficult to bear fruit. Although the mercury cathode electrolysis method that has been used for many years can solve most of the difficulties, it is not easy to make the separation easier, but Mn, Ti and the like can not be removed yet. The equipment for mercury cathode electrolysis is currently difficult to prepare for general laboratories. Second, the gravimetric method requires longer analysis times. Pigott et al. Will use the KCN-Oxine (KCN-8-hydroxyquinoline) or Cupferron method to solve the problem, but a large amount of drug must be used (often 10 grams of KCN Above) Or the cost is too high, it is difficult for the daily analysis of the application. In 1953, Kakita was