マイクロウエーブ加圧分解/誘導結合プラズマ発光分光分析法によるFe-Ga-P-C-B-Siガラス金属の分析

概要

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Proper dissolution procedures for Fe-Ga-P-C-B-Si bulk metallic glass were investigated for an elemental determination by inductively coupled plasma-optical emission spectrometry (ICP-OES). Metallic samples are usually dissolved with several kinds of mineral acids. For a Fe-Ga-P-C-B-Si bulk metallic glass sample, hydrofluoric acid or hydrochloric acid was not used, because silicon, phosphorus and boron in samples were volatilized. When the sample was dissolved with a mixture of hydrochloric acid and nitric acid, small amounts of black-colored insoluble residue remained. However, by a microwave-assisted dissolution method, the sample was completely dissolved with a mixture of hydrochloric acid, nitric acid and water. Analytical results obtained by ICP-OES had good reproducibility and the total content became almost 100%.
2005-04-05