高速ゲルクロマトグラフィーによる環境水中溶存有機物の分子量分布パターンの自動計測

概要

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An apparatus was development for automatic measurement and to evaluate the pattern of molecular weight distribution of organic substances dissolved in water. A separation column (7.6 mm i.d., 25 mm in length) packed with Asahipak GS-220 was used. Distilled water was used as the mobile phase at flow rate of 1 ml/min, and a chromatogram was obtained by a high sensitive refractive index detector. The apparatus was regulated automatically by a system-controller. Sample size necesary for an analysis was 0.5 ml of filtrated environmental water without preconcentration, and one chromatogram was obtained in twenty minutes. Some enviromental water gave different chromatographic patterns. River water was measured by the apparatus continuously and automatically and chromatograms were obtained once an hour, which showed the change of the patterns from morning to evening. The apparatus was found to be suitable for an automatic measurement of organic substances dissolved in enviromental waters.
社団法人日本分析化学会の論文
1990-06-05