论文部分内容阅读
公式推导从光谱定量分析的基本公式I=aC~b出发(其中C为杂质元素的含量;Ⅰ为杂质元素的谱线强度;b为发光云中该谱线的自吸,在微量元素的浓度下可视b=1:a是决定于试样性质和谱线性质的比例系数),如果用Ⅰ_o表示比较线的强度,用Ⅰ_(?)表示杂质线的强度,那么,分析线对的谱线强度的比值可用下列形式表示:I_n/I_o=aC~b/I_o=a′C~b。其中a′=a/I_o由于采用均称的分析线对,故a′与分析条件下偶然波动的关系极小,在确定的工作条件下,
The formula derives from the basic formula I = aC ~ b of spectral quantitative analysis (where C is the content of impurity element; I is the spectral line intensity of impurity element; b is the self-absorption of this line in luminescent cloud; Under the visual b = 1: a is determined by the nature of the sample and spectral properties of the proportion of the coefficient), if I_o said the strength of the comparison line, I_ (?) Said the impurity line intensity, then analyze the line spectrum The ratio of the line intensities can be expressed in the following form: I_n / I_o = aC ~ b / I_o = a’C ~ b. Wherein a ’= a / I_o due to the use of symmetry of the analytical line, so a’ and analysis of occasional fluctuations in the relationship is minimal, under certain working conditions,