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本文提出在原子吸收光谱测定中，采用Ｓｍｉｔｈ－Ｈｉｅｆｔｊｅ法校正背景时，空心阴极灯供电条件（即最佳宽窄脉冲电流）的选择依据和选择方法；并给出２４个常见元素的宽窄脉冲电流的选定结果。
In this paper, the selection criteria and selection method of hollow cathode lamp power supply conditions (ie, optimal narrow pulse current) are proposed in the atomic absorption spectrometry after Smith-Hieftje method is used to calibrate the background. The pulse width and width of 24 common elements Selected results.