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光譜分析特点之一是灵敏度高,一般在混合物中元素含量濃度达到10～(-3)—10~(-5)％即能檢定出来。但有些稀有元素,含量很低且譜線复杂,常须用色散率大的攝譜仪。但大的攝谱仪因光程较長,致延長了攝譜时間,不仅工作效率低,而且也影响分析的灵敏度。因此利用大型攝譜仪作譜線复杂的稀有元素矿石矿物分析,就必须解决这一問题。我们知道,各元素的光譜灵敏度与該元素是否易于激发,而其幅射强度是否足够观察,和該元素的原子在不同能态間的躍迁几率,以及其原子在电弧中蒸发时物理化学变化过程等因素有关。而这些原子内部
One of the characteristics of spectral analysis is its high sensitivity. It is generally detected when the concentration of the element in the mixture reaches 10 -3 to 10 -5%. However, some rare elements, low content and spectral complexity, often with a large dispersion spectrograph. However, the large spectrograph has a long optical path, which prolongs the photographic time. It not only lowers the working efficiency but also affects the sensitivity of the analysis. Therefore, the use of large spectrograph spectral lines for the complex elements of ore minerals analysis, we must address this issue. We know that the spectral sensitivity of each element and whether the element is easily excited and whether its radiation intensity is sufficiently observable and the transition probability of the element’s atoms between different energy states and the physicochemical changes of their atoms when they evaporate in an arc Process and other factors. And these atoms inside