加圧アルカリ分解/イオンクロマトグラフィーによるシリカ中の微量塩素の定量

概要

論文の詳細を見る
Trace amounts of chlorine in silica were determined by pressurized alkaline decomposition/ion chromatography. Each sample was decomposed with tetramethyl ammonium hydroxide in a teflon pressure vessel at 140℃ for 6 hours. In order to separate the matrix components, the decomposition solution was passed through a cation exchange column (muromac 500WX8,50〜100 mesh ; 12ml). The column was then washed with pure water. Chlorine of the eluate was determined by ion chromatography. Quantitative recoveries were obtained for chlorine. The detection limit of chlorine was 0.6 μg/g. Trace chlorine in silicas for electronics was determined.
社団法人日本分析化学会の論文
1997-10-05