Effect of Stray Light on Characteristic Mass in Zeeman Graphite Furnace Atomic Absorption Spectrometry

Prospects and problems in absolute analysis by electrothermal atomic absorption spectrometry

“…Su et al [30] studied the dependence of the A P , R, and m -parameters on HCL current and spectral slit width (SW) of Z/5000 spectrometer for Ag, Cu, Cr, and Ti and found that the scatter of the m -values measured at different currents and slit widths decreases to 4-7% after their correction compared to the original scatter of 8-26% RSD.…”

“…To reduce this scatter, we recommended monitoring the self-absorption level in HCL by measuring the A P parameter or, in some cases, both A P and R parameters. These investigations were continued by Su et al [30]. They drew attention to the fact that one of the equations used in our paper on the theoretical analysis of calibration curves [20] …”

Atomic Absorption, Atomic Emission, and Flame Emission Spectrometry

“…As a result, the ratio of theoretical to experimental characteristic mass was reduced for several elements, suggesting that atomization efficiency may be lower than previously assumed. Su et al (116) studied characteristic mass, effective stray light, Zeeman rollover absorbance, and Zeeman sensitivity ratio as a function of lamp current and slit width and presented mathematical expressions to describe the relationships of these parameters. It was possible, by taking effective stray light and Zeeman sensitivity ratio into account, to calculate a more precise characteristic mass.…”