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本文拟订一个溶液干渣转盘电极法。在二米光栅仪器上用高压火花作光沅,在可见部分摄谱,一次摄谱可测定全部15个希土元素。在标准溶液中的各元素的光谱分析,灵敏度在5×10~(-7)—5×10~(-8)克/毫升之间。如称取0.5克样进行化学处理,最后的分析溶液控制为10毫升的体积,则本法的分析灵敏度可达0.0000n％数量级。无需在特殊气氛中进行激发,可获得低背景,无氰带的谱板。以20次摄谱的结果算得的单次摄谱均方误差均在±10％以下。
In this paper, a solution of dry residue turntable electrode method. In the two-meter grating instrument with high-pressure sparks for the Yuan Yuan, in the visible part of the spectrum, a spectrum can measure all 15 of the Greek soil elements. The spectral analysis of each element in the standard solution showed a sensitivity of 5 × 10 -7 -5 -5 10 -8 g / ml. Such as weighed 0.5 g sample for chemical treatment, the final analysis of the solution control volume of 10 ml, the analysis sensitivity of this method up to the order of 0.0000n%. No need to be excited in a special atmosphere, get a low background, non-cyanide tape spectrum. The mean square error of a single spectrum calculated with the result of 20 times of the spectroscopy is less than ± 10%.