Determination of lanthanum,cerium, potassium, sodium, aluminum and iron in combustion improver for blast furnace coal powder by inductively coupled plasma atomic emission spectrometry
GU Ji-hong, YU Yuan-jun, KANG De-hua, YANG Li-rong, WANG Tie
Technology Center of Angang Steel Company Limited,Anshan 114009,China
Abstract：A simple and rapid determination method of multi-elements in combustion improver for blast furnace coal powder by inductively coupled plasma atomic emission spectrometry was proposed. The sample was dissolved by hydrochloric acid, nitric acid and hydrofluoric acid. The spectral lines at 408.672 nm, 418.660 nm, 766.491 nm, 589.592 nm, 167.078 and 275.573 nm were selected as the analytical lines for La, Ce, K, Na, Al and Fe, respectively. The spectral interference was eliminated by matrix matching and deduction of single background of off peaks. The linear range of calibration curves was 0.002%-1.0%(La, Ce), 0.005%-1.0% (K, Na) and 0.005%-5.0% (Al, Fe). Linear correlation coefficients of calibration curves of all elements were higher than 0.999 0. The detection limit was 0.004 μg/mL (La, Ce) and 0.01 μg/mL (K, Na, Al, Fe). The proposed method was applied to the determination of La, Ce, K, Na, Al and Fe in combustion improver for blast furnace coal powder. The found results were consistent with those obtained by other methods,and the relative standard deviations (RSD) were between 0.23% and 8.6%.
顾继红，于媛君，亢德华，杨丽荣，王铁. 电感耦合等离子体原子发射光谱法分析高炉煤粉助燃剂中镧铈钾钠铝铁[J]. 冶金分析, 2013, 33(10): 45-48.
GU Ji-hong, YU Yuan-jun, KANG De-hua, YANG Li-rong, WANG Tie. Determination of lanthanum,cerium, potassium, sodium, aluminum and iron in combustion improver for blast furnace coal powder by inductively coupled plasma atomic emission spectrometry. , 2013, 33(10): 45-48.
Eid M A,Broekaert J A C,TschOpel P.Application of ICP-AES to the determination of rare earth elements in phosphate samples[J].Freaenius’Journal of Analytical Chemistry,1992,342(1-2):107-112.
