連続水素化物発生-誘導結合プラズマ発光分析法および誘導結合プラズマ質量分析法による鉄鋼中の微量ひ素,ビスマス,アンチモンの定量

概要

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Trace of hydride-forming elements, As, Bi and Sb in iron and steel have been simultaneously determinend by continuous hydride generation and inductively coupled plasma atomic emission spectrometry or inductively coupled plasma mass spectrometry. The effects of masking reagents of matrix elements and acid concentration on the hydride generating conditions are investigated. A standard addition method is necessary for the determination of Bi, to compensate for the interference from alloy element, Ni. Detection limits of As, Bi and Sb are 0.5, 0.8, 0.5 ng/ml by ICP-AES and 0.03, 0.02, 0.03 ng/ml by ICP-MS, respectively, improved a sensitivity of a factor of 1 to 2 orders of magnitude from the conventional solution nebulization method.
社団法人日本鉄鋼協会の論文