各种耐酸、耐热合金鋼的冶炼和某些有色合金的生产往往需用大量的純鎳作原料。一般工厂对主成分的測定均采用二甲基乙二醛肟重量法,电解法和二甲基乙二醛肟沉淀分离鎳以EDTA絡合滴定法来完成测定。重量法,电解法等能得到精确的結果,但費时间較多,操作要求严格,又需用较貴的天平,电解仪等設备,否則也易造成誤差。本文介紹的方法省略了二甲基乙二醛肟沉 A variety of acid, heat-resistant alloy steel smelting and production of certain non-ferrous alloys often require a lot of pure nickel as raw material. General factory for the determination of the main components are used dimethyl glyoxal gravimetric method, electrolysis and dimethyl glyoxal precipitation of nickel to EDTA complexometric titration to complete the determination. Gravimetric method, electrolysis method can get accurate results, but more time consuming, demanding operation, but also need to use more expensive balance, electrolyzer and other equipment, otherwise it is easy to cause error. This article describes the method of omitting dimethyl glyoxime Shen