ゼーマン変調原子吸光分析法とその感度特性

概要

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ZAAS which can compensate the effect of background absorption and lamp drift, is classified into four methods according to combination of two aspects: One is either a magnetic field modulation or a polarization split modulation technique, and the other is either using Zeeman effect on a source emission line or using Zeeman effect on a sample absorption line. To estimate the sensitivity for each of these ZAAS methods quantitatively, a magnetic absorbance equivalent to a conventional absorbance is defined as the logarithm of the ratio of the transmitted intensities for two component Zeeman splitted lines. Analytical calibration curves for each modulation method (magnetic and conventional absorbances versus concentration) and the relative sensitivities (the ratio of the magnetic absorbance to the conventional absorbance) as a function of applied magnetic field are calculated numerically for each of Zeeman patterns and are compared with each other using typical line profiles.
社団法人日本分光学会の論文