自己反転スペクトルを利用した原子吸光のバックグラウンド補正

概要

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When the hollow cathode lamp was operated at high current, atomic lines arose self-reversal. A self-reversal spectrum was used for background correction in atomic absorption spectrometry. The sensitivity in this method was measured for 26 elements. The sensitivities of almost elements were above 0.5 comparison with the conventional method, but its for Al, Ba, Ca, Sr and V were about 0.3. The background correction for continuous absorption spectrum could be made by three methods of deuterium lamp, Zeeman and self-reversal. However, the background absorption caused by overlaped line of another element to analytical line could not be corrected by deuterium lamp method. Self-reversal background correction method was used to correct Sb and Mn lines overlaped to the analytical line of Ni 231.0 nm, and obtained satisfactory results.
社団法人日本分光学会の論文