VE—IM光电直读光谱仪在分析方法和数据处理上采用国内外普遍采用的“内标法”。但是,作为内标元素的重要条件是它在合金中的含量应当保持基本不变。然而高合金成份复杂、变化大,即使同一钢种,在冶炼过程中成份变化也很大。由x=I_分/I_内可知:当内标元素含量上升时,强度I_内上升,x下降;反之x上升。而x的变化必然引起含量Q的变化。所以, VE-IM optical direct reading spectrometer in the analysis of methods and data processing commonly used at home and abroad, “internal standard method.” However, the important condition for the internal standard element is that its content in the alloy should remain essentially unchanged. However, high-alloy components are complex and vary greatly. Even in the same steel type, the composition of the alloy varies greatly during the smelting process. By x = I_ points / I_ we can see: When the content of the internal standard element increases, the intensity of I_ rise, x decreases; the other hand, x rises. The change of x will inevitably lead to the change of Q content. and so,