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本文研究了５－Ｂｒ－ＰＡＤＡＰ与钴、镍反应的导数行为，利用一阶导数光度法同时测定钴和镍的新方法。用所建立的方法对化学试剂中的钴和镍的含量进行了同时测定，结果令人满意。
In this paper, the derivative behavior of 5-Br-PADAP with cobalt and nickel was studied. A new method of simultaneous determination of cobalt and nickel by first derivative spectrophotometry was studied. The established method was used to determine the content of cobalt and nickel in the chemical reagents simultaneously, and the results were satisfactory.