用N2O-C2H2火焰原子吸收光谱法测定羰基镍粉中钼含量

运用了N₂O-C₂H₂火焰原子吸收光谱法进行羰基镍粉钼含量的测定。介绍了钼最佳测定条件及呈良好线性范围的浓度.同时对样品消化处理条件及在测定中样品的干扰因素进行了综合考虑.该方法的相对标准偏差均小于1.0%(n=6),回收率均在97.0%～102.0%(n=6)之间.达到了实验室分析质量控制的要求.

Determination of Trace Molybdenum in Carbonyl Nickel Powder by Atomic Absorption Spectral Method

The application of N₂O-C₂H₂ flame atomic absorbing spectral method to measure the content of molybdenum in carbonyl nickel powder is studied. This paper introduces the optimum measuring conditions and the potency in which a fine liner range presents,and makes a synthetical consideration of interference factors. The method has the advantages of high sensitivity,simple operation,easy master, short analyzing cycle,less interference and good in selectivity and reappearance. The relative standard deviations are all less than 1.0% in six sample measures,and the standard adding recovery is in the range of 97.0%～102.0% in six sample measures. The practice shows that the method is fully suited to measure the molybdenum content in carbonyl nickel powder. The proposed method was proved to be a useful instrument analytical technique in nitrous oxide-ethane flame absorbing spectral method.