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发射光谱法测定混合稀土中单一稀土元素,往往是用直流电弧和交流电弧做激发光源。由于稀土元素谱线繁多,这两种方法又都是用石墨棒做支撑样品的电极,就不可避免地在感光板上产生较深的背景,并有氰谱带,这给选择分析线对和测量等带来不少麻烦。ICP发射光谱法的显著优点之一是无电极激发,基体效应小,因此它明显地降低了背景,并消除了氰谱带,使得选择分析线对的范围扩大,并扩展了工作曲线的直线范围。法塞尔(Fassel)等曾指出,测定混合稀土中镱和铥时,其工作曲线范围为0.01-100%。有人用ICP发射光谱法测定高纯氧化钇中14个稀土杂质元素;尼克得尔(Nikdel)用一种可调功率的ICP发生器测
Emission spectroscopy method for the determination of rare earth elements in rare earth mixed rare earth, often with DC arc and AC arc excitation light source. Due to the large number of rare earth elements spectrum, both of these two methods are used to support the sample electrode with graphite rods, it is inevitable to produce a dark background in the plate, and cyanide band, which gives the choice of analysis and Measurement, etc. bring a lot of trouble. One of the significant advantages of ICP emission spectrometry is electrodeless excitation with a small matrix effect, so it significantly reduces the background and eliminates the cyan band, making the range of selection analysis pairs wider and extending the straight-line range of the working curve . Fassel et al. Have pointed out that when working with ytterbium and gallium in mixed rare earths, the working curve ranges from 0.01 to 100%. Some people use ICP emission spectrometry determination of 14 rare earth impurities in high-purity yttrium oxide; Nickel (Nikkil) with a adjustable power ICP generator measured