二酸化硫黄処理された鉛ガラス表面上硫酸塩の分別溶解/イオンクロマト分析によるアルカリ金属と鉛の間接定量

概要

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An indirect determination of alkali metals and lead by fractional dissolution/ion chromatography of sulfates deposited on the surface of sulfur dioxide-treated lead glass was investigated. This method involves the following procedures : 1) Sodium sulfate and potassium sulfate are dissolved in 50% (v/v) ethanol. 2) Remaining lead sulfate is dissolved in 20mM sodium hydroxide. 3) From the concentration of sulfate in each sample solution, the surface concentrations of the corresponding alkali metals and lead are calculated. From the analytical results for lead glass samples, we have ensured that treating the glass with sulfur dioxide resulted in the formation of high concentrations of sodium sulfate and potassium sulfate, in addition to traces of lead sulfate, on the glass surface.
社団法人日本セラミックス協会の論文
2005-10-01