グロー放電質量分析法による鉄鋼中トランプエレメント定量

概要

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We examined the capability of Glow Discharge Mass Spectrometry to quantitatively analyze iron and steel for tramp elements at 10 mass ppm or less. We used 28 JSS and NIST standard reference materials to experimentally obtain the RSF (relative sensitivity factor) values for Cu, Zn, As, Sn, Sb, Pb and Bi. Systematic difference between two groups of the samples was found in the RSF values of Sb. Variation of the RSF values was large in Sn, as resulted in RSD being 7.67%, whereas Zn and Bi gave favorable results with RSD within 2%. We confirmed that the GDMS could satisfy the desired 10% accuracy for analyzing iron and steel for most of the tramp elements.
社団法人日本鉄鋼協会の論文