Abstract：The discharge behavior of middle-low alloy steel sample was analyzed by radio frequency glow discharge optical emission spectrometry(RF-GDOES). The effect of working parameters such as analytical power, argon pressure, preburn time and integration time on spectral intensity and stability was investigated. The optimized analytical parameters were as follows: analytical power of 50 W, argon pressure of 900 Pa, preburn time of 90 s and integration time of 10 s. The analytical method of trace calcium in middle-low alloy steel by radio frequency glow discharge emission spectrometry was established using iron as internal standard. The proposed method was applied to the analysis of middle-low alloy steel CRMs and actual sample. The determination results were in good agreement with the certified values or those found by atomic emission spectrometry(AAS) method. RSD was less than 2 %. This method could meet the requirements of production and scientific research.
胡维铸，范连明. 射频辉光放电发射光谱法测定中低合金钢中痕量钙[J]. 冶金分析, 2011, 31(7): 31-34.
HU Wei-zhu， FAN Lian-ming. Determination of trace calcium in middle-low alloy steel by radio frequency glow discharge optical emission spectrometry. , 2011, 31(7): 31-34.
