Abstract：The formula of spectral intensity under common conditions of atomic spectral analysis was discussed. The formation mechanism of element concentration in arc was emphatically discussed because this mechanism was the core of atomic spectral analysis which greatly affected the sensitivity and accuracy of detection. However, the investigation and understanding on this mechanism was very insufficient in the past. The authors had engaged in this area for several years. Based on the references and practical experiences,the viewpoint of interfacial effect on bottom of arc in formation mechanism of element concentration in arc was proposed. By the means of this mechanism, not only the problem that the volatile and non-volatile elements were hardly determined in atomic spectral analysis could be explained, but also the measures to improve the sensitivity and accuracy of atomic spectral analysis were pointed out, which had certain guiding function for the deep analysis of atomic spectroscopy.
王延龄, 张淑仪. 原子光谱分析的电弧光源中元素浓度形成机制的若干讨论[J]. 冶金分析, 2019, 39(12): 80-85.
WANG Yan-ling, ZHANG Shu-yi. Some discussions on formation mechanism of element concentration in arc light source of atomic spectral analysis. , 2019, 39(12): 80-85.
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