Abstract：The ferromanganese sample was dissolved in a platinum-gold crucible with water and nitric acid and evaporated to dryness. Then, manganese, silicon and phosphorus in sample were determined by X-ray fluorescence spectrometry with sample fusion preparation using Co as internal standard for Mn, Li2B4O7 as flux and KBr as release agent. In this study, the sample got wet with a little water first and then dissolved by dripping nitric acid, which could not only guaranteed the mild dissolution reaction without loss of sample due to splashing, but also effectively avoided the corrosion of crucible in the fusion of ferromanganese samples. Meanwhile, the large dilution ratio and internal standard method were used to reduce matrix interference. The proposed method has been applied to the determination of certified reference materials from different production units. The determination results were consistent with the certified values, and the relative standard deviations (RSD, n=11) were 0.25 %-1.9 %.
李京. 熔融制样-X射线荧光光谱法测定锰铁中锰硅磷[J]. 冶金分析, 2011, 31(6): 51-53.
LI Jing. Determination of manganese, silicon and phosphorus in ferromanganese by X-ray fluorescence spectrometry with fusion sample preparation. , 2011, 31(6): 51-53.
