Determination of phosphorus, nickel, copper, titanium and vanadium in ferromanganese by microwave digestion-inductively coupled plasma atomic emission spectrometry
赵容超1，李海平1，杨大蔚1，井婷婷2
1. Central Iron and Steel Research Institute, Beijing 100081, China；2. China Textile Academy，Beijing 100025，China
Abstract：After pretreatment with microwave digestion and selection of spectral lines at the wavelength of 327.395，231.604，177.434，334.941 and 309.310 nm as the analytical line of copper, nickel, phosphorus, titanium and vanadium, respectively, the content of copper, nickel, phosphorus, titanium and vanadium in ferromanganese sample was determined by inductively coupled plasma atomic emission spectrometry. The matrix effect produced by matrix manganese could be eliminated by matrix matching while the matrix iron did not have influence on the determination. When the method was applied to determine ferromanganese certified reference materials, the determination results were the same as the certified values. When it was applied to determine ferromanganese actual samples, relative standard deviations of the determination results were between 0.2% and 3.6% and recoveries were between 97％ and 103％. The method could be used to determine copper, nickel, phosphorus, titanium and vanadium in the medium, high and low-carbon ferromanganese.
