在前一篇文章中我们曾指出,如果使用相同的原子化系统和适当的激发方法,可望获得能与AAS(原子吸收光谱)和AES(原子发射光谱)技术相比较的检出限。一般说来,由于它们的激发背景值低,所以这些在组分间不存在热力学平衡关系的激发源较热激发源优越。因此,为充分发挥AES的能力,必须把石墨原子化炉中获得的分析原子的高密度和滞留时间与 We have pointed out in the previous article that the detection limits comparable to AAS (atomic absorption spectrometry) and AES (atomic emission spectroscopy) are expected to be obtained using the same atomicization system and appropriate excitation methods. In general, due to their low background excitation values, these excitation sources that do not have a thermodynamic equilibrium between the components are superior to the thermal excitation source. Therefore, in order to fully utilize the ability of AES, it is necessary to compare the high density of the analyte atoms obtained in the graphite atomization furnace and the residence time with