Simultaneous Determination of Multiple Impurity Elements in Molybedenum Powder by ICP-AES Standard Addition Method
An ICP-AES standard addition method for simultaneous determination of iron,nickel,aluminum,copper,calcium and magnesium in molybdenum powder was studied and established.The Sample was dissolved in hydrocholiric acid-nitric acid solution,standard addition method was used for getting a series of standard working solution samples.The analytical lines were Fe 238.204nm,Ni231.604nm,A1167.078nm,Cu327.396nm,Mg280.270nm,Ca393.366nm respectively.The linear correlation coefficients of each element were all above 0.996.The relative standard deviation of determination results was between 1.97％and 5.08％,and the recovery of standard additionwas from 88％to 113％.The measurement results were consistent with the results of national standard methods GB/T4325.The method is accurate,and can meet the needs of daily analysis for the determination of Fe,Ni,Al,Cu,Ca and Mg in molybedenum powder.
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万方数据
维普
