Flame Atomic Absorption Spectrophotometric Determination of the Iron Ore of Tungsten
The sample is dissolved in nitric acid hydrochloride,tungsten to acidprecipitation and isolated iron,copper,iron,manganese,bismuth,and other elements are associated with the formation of acid soluble compounds isoiated in hydrochloric acid solution,the solution made of iron,without any separation,FAAS used for the direct determination of the content of iron,white tungsten mine in the other impurities do not interfere with the determination.