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镍锌铁氧体中镍锌的测定,一般采用丁二肟重量法或容量法测定镍,氰化钾-甲醛破蔽法测定锌。虽分析结果准确,但不够快速,而且氰化钾对操作人员健康有害。根据有关资料,结合生产需要,经过多次试验,制订出无毒分析方法。实践证明,准确性和重视性均符合生产要求。测定方法样品制备:称取5克焦硫酸钾置于30毫升瓷坩埚中,在马弗炉中加热熔融成流动液体(约400℃),取出
Determination of nickel and zinc in nickel-zinc ferrite, the general use of dimethylglyoxime gravimetric method or volumetric method for the determination of nickel, potassium cyanide-formaldehyde method for the determination of zinc. Although the analysis results are accurate, but not fast enough, and potassium cyanide is harmful to the operator’s health. According to the relevant information, combined with production needs, after many tests, to develop a non-toxic analytical methods. Practice has proved that the accuracy and importance are in line with production requirements. Determination of the method Sample Preparation: Weigh 5 g of potassium pyrrolidone placed in 30 ml porcelain crucible, melted in a muffle furnace heated to melt (about 400 ° C), remove