The mechanism of enhancement effect of surfactant in flame atomic absorption spectrometry proposed by the same authors in 1991 was further proved in this paper, and the mechanism that surfactants suppress the interference of coexisting elements was also discussed. It was found that the binding of analytes or interferential ions, especially the latter, to micellae is the primary reason for the surfactants to be able to suppress the interference, and the amplifying of reducibility of flame gas, owing to the incomplete burning of surfact...
