原子吸光光度法による鉄鋼中のアルミニウムおよび鉛の定量方法
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概要
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An investigation was made about a determination method of soluble aluminium, insoluble aluminium in steels and lead by atomic absorption analysis method.Aluminium is resolved by hydrochlrie acid and hydrogenperoxide solution and after filtration being filtrated is diluted by water and the rest is diluted by water after being treated by potassium pyrosulfate.Such a lead that lead containing is over 0.01% in steel is resolved by hydrochloric acid and nitric acid and is diluted after being treated by potassium acid.And as for very small quantity with less 0.01% lead containing in steel it is determined by atomic absorption spectro-photometer after removing iron and chromium existing with the lead.Those lead can be adopted to carben steel, low and high alloy steel. And it was found that both reproductivity and accuracy were favorable. By adopting this method the analysis time could be remarkably shortened.
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