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在发射光谱分析中,应尽量降低谱线背景强度以不扣除背景。在分析少量或痕量元素时,如果背景影响较大,就必须扣除。如分析锆中铪时,背景非常明显,一般都需扣除。但能否简化扣除过程,是大家十分关注的问题。本文首先对扣除全背景的基本公式1gR=1g((~IL+B)/(I_B)-1)-1g((~IL′+B′)/(I_B′)-1)+1gI_B/I_(B′)分七种情况进行讨论,再引伸到为什么要扣除背景以
In the emission spectrum analysis, the background intensity of the spectrum should be minimized so as not to deduct the background. In the analysis of small or trace elements, if the impact of the larger context, it must be deducted. Such as the analysis of hafnium zirconium, the background is very obvious, generally need to be deducted. However, whether the deduction process can be simplified is a matter of great concern to all. In this paper, we first deduct the basic formula 1gR = 1g ((~ IL + B) / (I_B) -1) -1g (~ IL ’+ B’ / (I_B ’) - 1) + 1gI_B / I_ B ’) discussed in seven cases, and then extended to why the background should be deducted